Russia arrests 11 Moscow massacre suspects as they reveal names and pictures of those they believe behind ISIS concert hall slaughter as death toll rises to 115 and pictures reveal bloody aftermath

Russian media share pictures of four suspected terrorists, in the Crocus concert hall massacre in Moscow, giving their names as (clockwise from the left) Makhmadrasul Nasridinov, 27, Rivozhidin Ismonov, 51, Shokhindzhonn Safolzoda, 21, Rustam Nazarov, 29

Russian law enforcement has reportedly made arrests for suspects in the Crocus concert hall massacre in Moscow.

They also revealed pictures and names of four suspects as the death toll rose to 115 people, including three children, and 115 people remained in hospital.

Mukhammadsoobir Faizov has been arrested in relation to the attack

The condition of 44 survivors - including two children - is described as 'serious', while that of 16 other victims, including one child, is 'extremely serious'.

Some Moscow media suggested the terrorists could have escaped in this white Renault car with a number plate from Russian Tver region

The Islamic State group claimed responsibility for the attack, which was the deadliest in Russia in years and left the 6,000-capacity concert hall in Krasnogorsk, outside Moscow, in flames with a collapsing roof.

Eleven people have been detained following the horrific massacre, the head of Russia's Federal Security Service told President Vladimir Putin on Saturday, according to Russian state news agency Tass.

The burn out remains of the Crocus City Hall concert hall can be seen this morning following last night's massacre

It comes after a white Renault with Tver region license plates with the alleged terrorists was stopped near the village of Teply, close to the borders with Belarus and Ukraine, according to Baza media.

According to preliminary data, six people were in the car, and two were detained. Four more managed to escape. Baza - with close law enforcement contacts - showed images of four suspects, all from ex-Soviet republic Tajikistan, which borders Afghanistan.

They were Makhmadrasul Nasridinov, 37, Rivozhidin Ismonov, 51, Shohinjonn Safolzoda, 21 and Rustam Nazarov, 29.

The charred remains of the concert venue can be seen here as fire crews search around in the rubble following Friday's horrific attack

It is unclear which of these four have been detained. Russian FSB security service officers were 'working with' the suspects who were detained.

'They are being checked for involvement in the terrorist attack,' reported Baza. Telegram channel VChK-OGPU said earlier that one detainee from Tajikistan had named three others who he was with in a car. 'These are also natives of Tajikistan. They managed to hide in the forest.