The explosion killed 10 people, including two children, and injured about 50 others.
Officials said the victims of the Cherkizovsky market blast included five people preliminarily identified as Chinese, and one from Vietnam.
Prosecutors say they suspect the blast may have been connected to a commercial dispute or conflict among criminal groups.
(ITAR-TASS, AFP, dpa)
RFE/RL In Russian
UPDATED CONSTANTLY: Visit RFE/RL's Russian-language website, featuring news, analysis, features, streaming audio, and more, in Russian, from RFE/RL's Russian Service.