Suspects appear in court over Russian concert hall attack

A suspect in the Crocus City Hall shooting is escorted by police officers into the Basmanny District Court in Moscow (Alexander Zemlianichenko/AP)

Gunmen suspected of carrying out the Russia concert hall attack, which left more than 130 dead, have appeared at a Moscow district court.

There was a heavy police presence around the Basmanny District Court, which is expected to determine pre-trial restrictions for the men, who are suspected of opening fire on crowds of concertgoers at the suburban Crocus City Hall on Friday.