About 45,000 Syrian Kurds have crossed the border into Turkey after an advance by Islamic State militants, the Turkish Deputy Prime Minister has said.
"Around 45,000 Syrian Kurds have crossed the border as of now from eight entrance points along a 30 km distance from Akcakale to Mursitpinar since we opened the border yesterday," Numan Kurtulmus told CNN Turk television.
The president of Iraq's Kurdistan region urged the international community to "use every means" to protect the city of Kobani in neighbouring Syria from an impending attack by Islamic State militants.
IS fighters are besieging Kobani after taking control of at least 21 surrounding villages in a major assault against the predominantly Kurdish city on Syria's northern border with Turkey.
Several thousand Kurds began crossing from Syria into Turkey today, fearing the attack.
Masoud Barzan said: "IS terrorists... must be hit and destroyed wherever they are."
Earlier today French jets launched their first air strikes inside Iraq since joining the military action against IS militants.
Turkish forces have stopped thousands of Kurds fleeing Islamic State fighters in northern Syria from crossing the border.
About 3,000 people have fled their homes after the militants used tanks to seize control of 21 Kurdish villages in the Kobani area near the Turkish border.
For more than a year, Islamic State and Kurdish militias have clashed in the area, but IS appeared to have gained the upper hand since Wednesday.
A spokesman for Syria's powerful Kurdish Democratic Union Party called on Kurds around the world to come to Syria to defend Kobani.
French jets have launched their first air strikes inside Iraq since joining the military action against Islamic State militants.
A statement from President Francois Hollande's office said: "This morning at 9.40am (7.40am UK time) our Rafale jets launched a first strike against a logistics depot of the terrorists."
President Francois Hollande said French fighter jets will soon strike against Islamic State militants in Iraq once reconnaissance missions have identified targets.
When asked when French airstrikes in Iraq would begin, he told a news conference: "As soon as we have identified targets, that means in a short time frame.
"It will be air support to protect Iraqi soldiers and Kurdish Peshmerga forces to reduce and weaken this terrorist group."
Syrian Kurdish fighters have appealed to other Kurdish parties in the region for military aid to repel an advance by Islamic State fighters in northern Syria near the Turkish border, a Kurdish military official said.
Islamic State militants have captured 16 Kurdish villages in northern Syria, Kurdish military officials said.
This is a major advance towards the city of Ayn al-Arab at the border with Turkey, the officials said.
American fighter, attack and remotely piloted aircraft conducted seven airstrikes against Islamic State of Iraq and the Levant terrorists in Iraq yesterday and today, US Central Command officials have reported.
One airstrike destroyed an ISIL armed vehicle northwest of the Haditha Dam, two airstrikes destroyed two ISIL armed vehicles northwest of Irbil.
Four airstrikes southwest of Baghdad destroyed several small ISIL ground units and a small boat on the Euphrates River that was resupplying ISIL forces in the area, officials said.
All aircraft exited the strike areas safely, they added.
Centcom has conducted a total of 174 airstrikes across Iraq, officials said.
US President Barack Obama would consider requests to "forward deploy" US military advisers with Iraqi troops "on a case-by-case basis" if they are needed, a White House spokesman has said.
They would not be personally or directly engaging the enemy
Iranian president Hassan Rouhani has issued a strongly-worded condemnation of Islamic State terrorists he says are trying to "kill humanity".
In an interview with NBC News, Mr Rouhani said IS murders of civilians were contrary to Islamic teachings.
"From the viewpoint of the Islamic tenets and culture, killing an innocent people equals the killing of the whole humanity," Mr Rouhani said.