Islamic State crisis: New strikes near Syria-Turkey border
New air strikes have targeted Islamic State (IS) militants in Syria, hitting areas close to the border with Turkey.
Syrian activists reported strikes around the Kurdish town of Kobane, which has been besieged by IS fighters for several days.
Witnesses saw two military aircraft approaching from Turkey but Turkish officials denied its airspace or bases had been used in the attack.
The US-led coalition expanded its raids against IS into Syria on Monday.
But the aerial bombardment near Kobane, which happened at about 01:00 local time (22:00 GMT), has not been confirmed by the US or any coalition member.
Turkish military sources said neither its air force nor the US airbase at Incirlik in southern Turkey had been used.