Investigators in Russia have identified a suicide bomber who killed at least 35 people at the main international airport in Moscow last Monday.
The Federal Investigative Committee announced he was a man, aged 20, from the North Caucasus. But his name was not released.
About 180 people were wounded in the attack, in the arrivals hall of Domodedovo airport.
The investigative committee said that the bombing was aimed first and foremost at foreign citizens.
It was by no means an accident that the act of terror was committed in the international arrivals hall, a statement said.
At least seven foreigners were killed in the bombing at the airport - the busiest serving the capital. Several international flights had just landed.
The BBC reports the dead included people from Britain, Germany, Austria, Ukraine, Tajikistan, Kyrgyzstan and Uzbekistan.
Sixteen Russians were among them. The remaining 12 people who died have not been identified.
Two female suicide bombers from the Dagestan region detonated explosives last March on the underground metro system in Moscow during rush hour, killing 40 people and injuring more than 80.