Up to 46 people have been killed in a rebel suicide bomb attack in the Chechen capital, Grozny.
Dozens of people were also injured in the attack on the headquarters of the pro-Moscow government.
It is reported a truck and another vehicle packed with a tonne of explosives crashed into the building and then exploded.
The attack is believed to bear the hallmarks of separatist rebels who have been fighting to free Chechnya from Moscow's rule.
