Air raid sirens were wailing and an explosion was heard, Russian news outlet Baza reported, citing local residents.
A Russian officer stands in front of a TU-160 bomber, or Blackjack, at a military airbase in Engels, some 900 km (559 miles) south of Moscow, August 7, 2008.(photo credit: REUTERS/SERGEI KARPUKHIN)ByREUTERS, JERUSALEM POST STAFFUpdated: