Passengers sleep at the departure hall of Moscow's Domodedovo airport
Passengers sleep at the departure hall of Moscow's Domodedovo airport December 28, 2010. REUTERS

According to preliminary reports, ten people have been killed and twenty wounded after a suspected suicide bomb blast at Domodedovo airport in Moscow.

A spokeswoman for the federal prosecutor's office said the cause of the blast (which occurred in a baggage-claim area) was as yet unknown.

Last March, two women suicide bombers from the Dagestan area set off explosives in Moscow’s subway system, killing 40 people.