Turkish President Tayyip Erdogan said bombing was not enough to defeat Islamic State after fighters from the extremist group advanced into the south west of the Syrian Kurdish town of Kobani.
"The problem of ISIS (Islamic State) ... cannot be solved via air bombardment. Right now ... Kobani is about to fall," he said during a visit to a camp for Syrian refugees.
The prospect that the town on the Turkish border could be captured by the militants has increased pressure on Turkey, with the strongest army in the region, to join an international coalition to fight against Islamic State.
Erdogan said Turkey would intervene if there were threats to Turkish soldiers guarding a historic site in Syria that Ankara regards as its territory. But so far Turkey has made no move to get involved in the fighting across the bo