The Russian Ministry of Defence said on Thursday that its planes had carried out four air strikes against militants in Syria's Idlib region, the RIA news agency reported.
The Russian military said that the Turkish army had asked for its help to protect Turkish troops by striking "terrorists in Idlib".
It is not possible to say that a full ceasefire is established in Syria's Idlib, Turkish Foreign Minister Mevlut Cavusoglu said on Thursday, after Turkey's observation point was shelled from Syrian government forces.
Speaking in a news conference with his French counterpart, Cavusoglu also said Turkey will do what is necessary if attacks continue and that it expects Russia to put pressure on the Syrian government as a guarantor country.
Want to enjoy 'Zen' reading - with no ads and just the article? Subscribe todaySubscribe now