Kurdish forces are struggling to defend themselves against Islamic State (IS) militants in northeast Iraq and are appealing for more international help.
There has been fighting around towns including Jalula and Sa'dya, which have been controlled by the well-armed Sunni extremists for several weeks.
The IS insurgents have seized large swathes of the country since a June offensive but have been hit by US airstrikes in some areas including around Mosul Dam.
However, Sky's Chief Correspondent Stuart Ramsay, reporting from outside Jalula, north of Baghdad, said the Kurdish peshmerga fighters want more weaponry from the outside world and are "getting little or no air support".
Thousands of peshmerga and counter-terrorism soldiers have been deployed, including many around the town.
 Sky's Stuart Ramsay outside the town of Jalula
 Sky's Stuart Ramsay outside the town of Jalula  He said the Kurds have some heavy weapons but the equipment is old, while the jihadists "have modern equipment and lots of money".
Ramsay said the two sides are fighting to control territory not the towns themselves as IS have them "under total lockdown".
The Kurds are trying to cut their supply lines and one fighter told Sky News: "We need weapons to make the battle equal."
Ramsay said: "Peshmerga front-line positions are regularly hit from far away. There are scorch marks and burning patches everywhere."
Roadside bombs laid by the extremists are also "causing more casualties than ever before," he added.
Meanwhile, eight people have been killed after a suicide bomber blew up a vehicle packed with explosives at the interior ministry's intelligence headquarters in Baghdad.
 PM designate Haider al Abadi is trying to form a more inclusive government
 PM designate Haider al Abadi is trying to form a more inclusive government  It comes a day after a sectarian attack at a mosque killed at least 68 Sunni Muslims, plunging efforts to form a united front against the jihadists into crisis.
Officials say a suicide bomber blew himself up in the Imam Wais mosque north of Baghdad, with Shia militiamen picking off fleeing worshippers with machine guns.
 Diyala has seen heavy fighting between Iraqi troops and IS. File pic
 Diyala has seen heavy fighting between Iraqi troops and IS. File pic  Attacks on mosques are acutely sensitive and have in the past unleashed a deadly series of revenge killings and counter attacks in Iraq.
The attack, in Diyala province, is seen as a blow to government efforts to secure backing from Sunni groups in its battle against the extremists.
 The US says the killing of James Foley was a "terrorist attack" on America
 The US says the killing of James Foley was a "terrorist attack" on America  Prime Minister designate Haider al Abadi, a moderate Shia, is attempting to form a more inclusive government following the resignation of outgoing PM Nouri al Maliki.
But two influential Sunni politicians - Parliamentary Speaker Salim al Jabouri and Deputy Prime Minister Saleh al Mutlak - have now pulled out of talks with the main Shia political alliance after the massacre.
The US, which is carrying out airstrikes against militants, has ramped up its rhetoric over the beheading of journalist James Foley.
In Washington, Deputy National Security Advisor Ben Rhodes said the murder "represents a terrorist attack against our country".
He said the US would not be restricted by the Iraq-Syria border when it considers further action against IS militants.
Having poured in from Syria across a desert border that it does not recognise, the Islamist movement has declared its own caliphate.
 Red shows areas controlled by IS, while yellow is areas of fighting
 Red shows areas controlled by IS, while yellow is areas of fighting   Journalist James Foley was beheaded on video by an IS militant
 Journalist James Foley was beheaded on video by an IS militant   Kurdish Peshmerga are leading the fightback against IS in Iraq
 Kurdish Peshmerga are leading the fightback against IS in Iraq   Russian aid trucks pictured upon their return to the border crossing
 Russian aid trucks pictured upon their return to the border crossing   Ms Merkel will hold talks with Mr Poroshenko
 Ms Merkel will hold talks with Mr Poroshenko   A Ukrainian rebel controls an area after a shelling in Donetsk
 A Ukrainian rebel controls an area after a shelling in Donetsk   A Kurdish peshmerga fighter
 A Kurdish peshmerga fighter   James Foley in Libya in 2011
 James Foley in Libya in 2011   A rough outline of the caliphate declared by IS militants
 A rough outline of the caliphate declared by IS militants   Militants vowed to attack US targets in another video clip
 Militants vowed to attack US targets in another video clip   The fighter who killed James Foley
 The fighter who killed James Foley   Ukraine insisted the aid convoy entered under the auspices of the Red Cross
 Ukraine insisted the aid convoy entered under the auspices of the Red Cross   President Poroshenko is due to meet Russia's leader next week
 President Poroshenko is due to meet Russia's leader next week   Ukraine said it captured two Russian armoured vehicles
 Ukraine said it captured two Russian armoured vehicles   Sources said Germany's Angela Merkel would push for a ceasefire
 Sources said Germany's Angela Merkel would push for a ceasefire   The 280-truck convoy departed from near Moscow more than seven days ago
 The 280-truck convoy departed from near Moscow more than seven days ago   The aftermath of the airstrike that failed to kill Mohammed Deif
 The aftermath of the airstrike that failed to kill Mohammed Deif   Smoke billows from Gaza following an airstrike
 Smoke billows from Gaza following an airstrike   Liberia's ebola task force enforcing the quarantine
 Liberia's ebola task force enforcing the quarantine   Relatives of Miata Flowers run to an awaiting car to be taken from the slum
 Relatives of Miata Flowers run to an awaiting car to be taken from the slum   Dr Brantly and Nancy Writebol contracted the disease in Liberia
 Dr Brantly and Nancy Writebol contracted the disease in Liberia   Private security guards may be set to return to Iraq. Pic: Pete Norman
 Private security guards may be set to return to Iraq. Pic: Pete Norman   An MP5 sub-machinegun used by a security detail in Iraq. Pic: Pete Norman
 An MP5 sub-machinegun used by a security detail in Iraq. Pic: Pete Norman   The arrival of Islamic State fighters has changed the conflict in Syria
 The arrival of Islamic State fighters has changed the conflict in Syria   Mr Foley in Syria before he was captured. Pic: Nicole Tung
 Mr Foley in Syria before he was captured. Pic: Nicole Tung   John and Diane Foley, Mr Foley's parents
 John and Diane Foley, Mr Foley's parents   IS militants have captured large areas of northern Iraq and Syria
 IS militants have captured large areas of northern Iraq and Syria   Mosul Dam. Pic: File
 Mosul Dam. Pic: File   The dam and the city of Mosul are in the north of the country
 The dam and the city of Mosul are in the north of the country   The UK is considering arming peshmerga troops fighting IS extremists
 The UK is considering arming peshmerga troops fighting IS extremists   A US airstrike against an IS position near Mosul Dam
 A US airstrike against an IS position near Mosul Dam   Michael Fallon says Britain's involvement could last 'weeks and months'
 Michael Fallon says Britain's involvement could last 'weeks and months'   Sheikh Khalah Sheikh Alyas: 'IS killed our young people'
 Sheikh Khalah Sheikh Alyas: 'IS killed our young people'   Israel destroyed the home of Hussam Qawasmeh before dawn
 Israel destroyed the home of Hussam Qawasmeh before dawn   Gilad Shaar, Naftali Frenkel, Eyal Yifrach were murdered in June
 Gilad Shaar, Naftali Frenkel, Eyal Yifrach were murdered in June   The mother of Arab teen Mohammed holds a photo of her son
 The mother of Arab teen Mohammed holds a photo of her son   The journey between Lombok and Komodo can take three days by boat
 The journey between Lombok and Komodo can take three days by boat   The shooting of Michael Brown sparked protests across the US
 The shooting of Michael Brown sparked protests across the US   A protester throws a gas canister back towards police
 A protester throws a gas canister back towards police   A demonstrator overcome by the effects of gas is carried away
 A demonstrator overcome by the effects of gas is carried away   Russian vehicles with containers for BUK-M1 missiles in Rostov on Saturday
 Russian vehicles with containers for BUK-M1 missiles in Rostov on Saturday   The plane was shot down in the Luhansk region of eastern Ukraine
 The plane was shot down in the Luhansk region of eastern Ukraine   Several lorries from a Russian aid convoy are moving to the border
 Several lorries from a Russian aid convoy are moving to the border  

