Diplomatic moves are taking place between Turkey and both Russia and Ukraine.
Vladimir Putin will visit Turkey, a NATO member, to meet President Recep Tayyip Erdogan on 12 February, a Turkish official has said.
Meanwhile, Turkey and Ukraine have signed an accord to allow Turkish construction firms to take part in rebuilding Ukrainian infrastructure damaged by Russia.
The main areas in need of reconstruction are housing, roads, bridges, railways, and water transport infrastructure, Ukrainian infrastructure minister Oleksandr Kubrakov said at a signing ceremony in Istanbul today.
