The US has issued sanctions against its fellow NATO ally Turkey over its deployment of a Russian-made missile defense system acquired last year, writes BBC.

The US says Russia’s S-400 surface-to-air missile system is incompatible with NATO technology and a threat to the Euro-Atlantic alliance.

The sanctions announced by the state department on Monday target Turkey’s weapons procurement sector.

The move was swiftly condemned by officials in Turkey and Russia.

The US had already kicked Turkey out of its F-35 fighter jet programme over the purchase of the Russian-made missile system.