A gunman has killed two people and injured six, after opening fire on worshippers at a Cathedral in Russia.
The attack happened on the island of Sakhalin, off Russia's east coast.
The man, who worked as a security guard, was detained after the shooting.
His motives are not known at this point.
Russia has stepped up security across the country for the Winter Olympics in Sochi.
It follows warnings from Islamic militants, who have threatened to disrupt the Games.
