Valeri Jukovchev is the third suspect detained over the bomb blast.

The other two detained are students Oleg Kostarev and Ilya Tikhomirov, APA reports.

The detained face charges of killing two or more persons due to national conflicts. All of the three might be sentenced to 20 years in prison if the charges are proved.

The bomb blast tore through Cherkizovo market on 21 August killing at least 10 people and injuring 55, officials said. Two persons had been seen leaving a bag near one of the market pavilions shortly before the explosion.

According to initial calculation, the power of the blast was equal to 1.2 kg of trotyl. It was a strong blast as there was a gas-cylinder nearby.

Cherkizovo market is run by Azerbaijani Telman Ismayilov, who owns "AST" firm. The market in 20 hectares of area has brought together Chinese, Vietnamese and Caucasian tradesmen.

Two Russians, three Tajiks, two Uzbeks were were injured. There are also Azerbaijanis, Ukrainians, Belarus, Vietnamese, Chinese and gypsies among the injured.