Boris Nemtsov arrests announced on Russian state TV

The Russian authorities have arrested two people in connection with the murder of the opposition leader Boris Nemtsov, who was shot dead a week ago near the Kremlin.

Anzor Gubashev and Zaur Dadayev, who are both from the Caucasus, were detained on Saturday.

The head of the security service, Alexander Bortnikov, made the announcement on Russian state television.