LAHORE, Pakistan, (Reuters) – Three bombs exploded at  a Shi’ite procession in the Pakistani city of Lahore yesterday, killing at least 20 people and wounding over 170,  piling pressure on a government already overwhelmed by floods.

Police said two suicide bombers blew themselves up in a  crowd, after a lull in violence during the floods, the type of  attack that Pakistani Taliban militants have claimed in the  past.

Sajjad Bhutta, a senior Lahore official, told Reuters the  death toll had climbed to 20, with at least 170 wounded. Rescue  services said 25 were killed.

Separately, the U.S. Justice Department said prosecutors had  charged the leader of the al Qaeda-linked Pakistani Taliban,  Hakimullah Mehsud, for the plot that killed seven CIA employees  at an American base in Afghanistan last December.

Mehsud, believed to be in the tribal areas of Pakistan, was  accused of conspiracy to kill Americans overseas and conspiracy  to use a weapon of mass destruction, the Justice Department  said. The charges confirm Pakistan’s Taliban insurgents have  extended their reach overseas.