Moscow bomber woman tied to suicide group: report

The suicide bomber who killed 35 people at Moscow's Domodedovo airport is believed to be a female and may have been part of a group dispatched by militants in the Northern Caucasus to bomb the capital, reports said Tuesday.

The Kommersant daily, citing its own sources, said the Russian special services became aware of the risk of an attack when a small building on the site of a Moscow sports club was completely destroyed by an explosion late on Dec. 31.

It said that the explosion was caused by a woman from the Northern Caucasus who had accidentally blown herself up due to carelessness with explosives.