Turkey is to allow Iraqi Kurdish fighters to cross the Syrian border to fight Islamic State (IS) militants in Kobane, in what is being seenas a policy reversal.
Foreign Minister Mevlut Cavusoglu said talks on the subject were continuing.
Tens of thousands of people have fled months of fighting in Kobane between IS forces and Syrian Kurd defenders.
The announcement came shortly after the US carried out air drops of weapons to the town's Kurdish fighters.
Meanwhile the US-led coalition has carried out its first air strike of the day, against IS positions in the south-west of the town, says the BBC's Kasra Naji on the Turkish border.
US Central Command later confirmed six strikes near Kobane over Sunday and Monday, as well as six in Iraq near Falluja and Baiji involving French and UK aircraft.
Our correspondent says Kobane has been largely quiet for the second day running, with Kurdish fighters apparently having driven IS militants from most of the town.
But the Turkish government decision is nevertheless a major boost for the defenders' morale, he adds, and soon for their fighting capability.