Turkish police have detained the sister and mother of the gunman who shot dead the Russian ambassador at an art gallery in the Turkish capital, broadcaster CNN Turk reports.
It said the two women were detained in the southwestern Turkish province of Aydin following the shooting on Monday.
The Ankara mayor said on Twitter the gunman as a 22-year-old police officer.
Two security sources told Reuters he was not on duty at the time.
The attacker was smartly dressed in black suit and tie and stood, alone, behind the ambassador as he made a speech at the art exhibition, a person at the scene told Reuters.
