Russia

The United States has been named as a threat to Russia's national security for the first time, a sign of how relations with the West have deteriorated in recent years.

Dozens of people have been killed in air strikes believed to have been carried out by Russian planes in the Syrian city of Idlib, according to activists and residents.

At least 23 people have died in a suspicious fire at a mental health clinic in western Russia.

Russia has confirmed one of its warships fired warning shots at a Turkish vessel in the Aegean Sea.

Russia has accused Turkey of shooting down its warplane near the border with Syria in order to protect its oil trade with the Islamic State (IS) group.

Turkey is preparing to return the body of the Russian pilot who was killed after his plane was shot down on the Syrian border.

Russia has announced a package of economic sanctions against Turkey over the shooting down of a Russian jet on the Syrian border on Tuesday.

Russia has strengthened its anti-aircraft defences in Syria by moving a cruiser towards the coast and deploying new missiles at its main base.

Russia has rejected Turkey's claims it did not know the plane it shot down on the Syrian border was Russian.

A Russian marine has been killed on a helicopter mission to rescue the crew of a jet downed by Turkey near the Syrian border, the BBC reports.

Russian President Vladimir Putin has condemned the downing of a Russian fighter jet by Turkey as a stab in the back administered by "the accomplices of terrorists".