Underwear Kiosk Blast Injures 13

Thirteen people, including an 8-year-old girl, suffered injuries Saturday when an explosive device went off at a kiosk selling underwear near the Prazhskaya metro station in southern Moscow, Interfax reported Sunday.

Twelve of the people were hospitalized, including four aged 41 to 59 who remained in serious condition Sunday, the report said.

Police said the blast, which occurred in a row of kiosks near the metro station, was caused by a homemade unshelled explosive device with low explosive force. They did not elaborate. The Emergency Situations Ministry said earlier that the explosion might have been caused by firecrackers that went off accidentally. It said some fireworks had been stored beneath the vendor's table.

The police have opened a criminal investigation.