MOSCOW, May 18 (RAPSI) – The Moscow City Court on Wednesday upheld the house arrest of Dmitriy Kamenshchik, the Domodedovo airport owner charged in the case over 2011 terrorist attack that left 37 dead, RAPSI reports from the courtroom.

The billionaire will stay under house arrest until July 28.

Defense asked the court to release Kamenshchik on bail of 50 million rubles ($775,000). A prosecutor in turn demanded revocation of the preventive measure. Victims in the case changed their opinion and also sought release for Kamenshchik because Domodedovo owners had established a charity fund to pay the victims compensations.

According to investigators, Kamenshchik and several other ex-managers of Domodedovo 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.