Three armed men on Sunday tried to attack a police station in the Nor-Nork district of Yerevan, the Armenian capital, Armenia's Interior Ministry said.

According to preliminary information, two of the three men had been wounded as a result of hand grenades they were carrying detonating, it said.

The third man was reported to still be outside the police station with a grenade.

Russia's state TASS news agency said the head of the Armenian police force was on the scene, conducting negotiations with the man.