This video grab taken from a handout footage released by Russia's Investigative Committee on March 24, 2024 shows law enforcement officers escorting men suspected of taking part in the deadliest attack in Europe to have been claimed by the Islamic State jihadist group. /CFP
Four men accused of involvement in the Moscow concert hall attack that killed at least 137 people were charged with terrorism on Sunday and ordered to be detained pending trial.
All four risk a life sentence in prison, a statement from Moscow's Basmanny district court said.
The men were ordered to be held until May 22, but that could be extended depending on when the date for their trial is fixed.
The court said two of the defendants had pleaded guilty, one of them, from Tajikistan, "entirely acknowledged his guilt", said the statement. Officials have already said the gunmen were all foreign nationals.
Russian officials say they arrested 11 people in connection with Friday night's attack at the Crocus City Hall in Moscow's northern suburb of Krasnogorsk, including four of those who carried out the killings.