Russian television on Saturday showed footage of the interrogation after the arrest of four alleged perpetrators of the attack on the Moscow concert hall, Le Figaro reports. Russian authorities announced on Saturday the arrest of 11 people, including four alleged attackers, foreign nationals, in the Bryansk region, on the border with Ukraine and Belarus.

Russian public broadcaster Channel One, controlled by the Russian government, showed images of the suspects being taken away by armed police, three of them with bloodied faces.

In the footage of the interrogations, two suspects admit their guilt, one says that they acted for money.

According to the Russian news agency TASS, the man detained on suspicion of involvement in the attack said that he was promised a reward of 500,000 rubles ($5,400).

The man added that half of the money was transferred to his card, and he received the other half later. He lost the card while trying to escape from the police.

Some of the suspects are from Tajikistan, a former Soviet republic in Central Asia that neighbors Afghanistan and is home to the Islamic State group, which claimed responsibility for the attack in Moscow, according to Russian media and lawmaker Oleksandr Khinshtein.

The investigation did not name the nationality of the suspects, noting only that they are not Russian.