At least eight people were killed on Monday in twin car bombings in Russia`s North Caucasus region, officials said.
The suicide squad made up of three women and one man had spent time in Pakistan and Iran.
A bomb exploded on a railway track in Russia`s Dagestan province on Sunday, derailing a freight train days after suicide bombers killed 12 people in the region, Russian news agencies reported. Nobody was hurt.
Day in Pics: 31st August
Showbiz World - August 31, 2014
Famous Ganesh Pandals in Mumbai