President Dmitry Medvedev of Russia has sacked a top transport official after Monday's bomb attack at a Moscow airport which killed 35 people.
Moscow is in mourning for the victims. TV channels and radio stations suspended entertainment programmes, while mourning services are being held in the capital's churches.
A preliminary list now been published of all those who were killed. Another 116 people were wounded in the blast.
The BBC reports almost 50 of them are in a serious condition in hospital.
The head of the interior ministry transport department for the central region has been dismissed after accusations that a lack of security allowed a suicide bomber to enter the arrivals hall at Domodedovo airport.
Three other officials have also been fired. Airport officials firmly deny any culpability.
Mr Medvedev said those who did not work properly should be punished.
Groups from the North Caucasus are suspected of planning the attack in which a bomber detonated up to 7kg of TNT.
The explosion was in a public area of the airport's busy international arrivals hall.
According to Ria Novosti, Russian authorities were warned a week ago that an "act of terror" would be carried out near one of Moscow's airports. The agency said police were now seeking three suspects.