Turkey will not back down over a missile deal with Russia that has unnerved some of its Nato allies, president Recep Tayyip Erdogan has said.
The announcement was made at a summit aimed at strengthening ties between the two countries. Speaking at a joint news conference with Russia's Vladimir Putin, Erdogan insisted that the "subject was closed."
For his part, Putin said Russia would speed up delivery of the S-400 long-range anti-aircraft missiles.
Earlier in the day, the two leaders had announced the beginning of construction of Turkey's first nuclear plant, to be built by Russia's nuclear energy agency.