MOSCOW, April 22 (RAPSI) – Investigators have filed motions seeking to place Domodedovo Airport ex-director Vyacheslav Nekrasov and Managing Director of Domodedovo Airport Aviation Security Andrei Danilov, who stand charged with the provision of services that allegedly do not meet security standards in connection with 2011 terrorist attack that left 37 dead, under house arrest, Moscow’s Basmanny District Court’s spokesperson Yunona Tsareva told RAPSI on Friday.

The motions will be considered on April 26.

Earlier, the court ordered the detention of Nekrasov, Danilov and Export Management Company Limited ex-head Svetlana Trishina.  A measure of restraint of Trishina was later changed to the house arrest.

On February 19, the Basmanny District Court of Moscow placed Dmitry Kamenshchik, the owner of the Domodedovo airport, under house arrest in connection with this case.

According to investigators, the defendants have not provided sufficient security level that let the suicide bomber freely enter the arrival lounge and set off an explosive.

A suicide bomber detonated a bomb in the Domodedovo Airport’s international arrivals hall, killing 37 people and injuring 172, on January 24, 2011.

Doku Umarov, Russia’s most wanted terrorist at the time, claimed responsibility for the attack. Altogether, 28 men connected with the terrorist organization called the Caucasus Emirate were linked to the attack, according to the investigators. Seventeen of them were killed in special operations in 2011, and four were detained.

In November 2013, a Moscow Region court sentenced three men to life in prison and a fourth man to 10 years for their role in the suicide bombing.