Russian TV showed a video of the arrest and interrogation of four men believed to have carried out the deadly attack on a Moscow concert hall.
On Saturday, Russia's Channel One TV displayed video of four suspects and their damaged white Renault car.
The suspects were apprehended by special forces in the village of Khatsun near the borders with Ukraine and Belarus, as per the report.
Recordings taken at night and during the day showed the detained men speaking Russian with an accent.
The Islamic State (IS) group has claimed responsibility for the attack on Crocus City Hall concert venue near Moscow on Friday night, where a group of gunmen opened fire and set the building on fire.
They killed at least 133 people.
The interior ministry stated that all four suspected gunmen were foreign nationals.
A Russian MP mentioned that some of those detained are from Tajikistan, a post-Soviet state bordering Afghanistan, where its residents have been involved in previous IS attacks.
A young bearded man sitting on the ground was asked, "What were you doing at Crocus?"
"I shot people.. for money," he replied in broken Russian and went on to say he was promised "half a million rubles ($5,425)" and had received half of it on a bank card.
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He added that those who hired them provided the weapons and communicated with him through the secure messaging platform Telegram without revealing their names.
The video also depicts one suspect being led along a snowy path in a forest. The dark-haired man in a light brown T-shirt had blood flowing from his ear.
He was also shown being interrogated with a bandage wrapped around his head, his lips and nose bloodied and swollen.
When asked what the suspected attackers did with their weapons, he said they were left "somewhere on the road".
Previously, a graphic video was shared online, seemingly capturing the detention of the same suspect.
It displayed a man in camouflage cutting off part of the ear of a dark-haired man, attempting to make him eat it, then hitting him in the face.
Russia’s TV aired images of other suspects with cuts on their faces.
Chechen leader Ramzan Kadyrov mentioned that Chechen soldiers had helped the FSB security service apprehend the suspects.
Belarus stated that it had aided Russia in apprehending the men "to prevent them from leaving through our common border".
None of those questioned mentioned either Islamic State or Ukraine in the broadcast footage.
Russian officials have not referenced the Islamic State group in their public statements, but on Saturday, President Vladimir Putin stated that the suspects had planned to cross the border into Ukraine.
Kyiv firmly denies any involvement and has dismissed any suggestion that the gunmen could have been heading into Ukraine.
Russia has declared that it has detained 11 people, including four suspected gunmen.
AFP