Two suspects have been detained by Russian authorities over the murder of opposition politician Boris Nemtsov, the head of the Federal Security Service Alexander Bortnikov said on Saturday.

They suspects are Anzor Gubashev and Zaur Dadayev, Bortnikov said in a video on air of state TV Channel One.

In his early comments on Nemtsov's murder, Russian official said there are always suspects in the crimes, Gazeta reported.