Russia's law enforcement agencies have clashed in court over the case of a billionaire owner of the nation's biggest airport linked to a deadly bombing five years ago.

Dmitry Kamenshchik, the owner of Moscow's Domodedovo airport, was accused by the Investigative Committee of failing to meet safety requirements, leading to the death of 37 people in a suicide bombing on Jan. 24, 2011. The attack in the international arrivals area wounded 180 others. Chechen rebels claimed responsibility.

The Investigative Committee claimed that by waiving blanket checks of passengers at the airport's entrance Kamenshchik made it vulnerable, and put him under arrest Thursday.

Kamenshchik has denied the accusations, saying that blanket inspections weren't required by law.

Prosecutors contested the Investigative Committee's case in a Moscow court Friday, calling the accusations unfounded.