AP Photo/K.M. Chaudary
Pakistani rescue workers and police officers remove their injured colleagues from the site of a suicide car bombing in Lahore, Pakistan on Wednesday, May 27, 2009. A suicide car bomber struck buildings housing police and intelligence agency offices in eastern Pakistan in one of the deadliest blasts in the country this year.
AP Photo/K.M. Chaudary
Pakistani security officials and rescue workers gather at the site of suicide car bombing in Lahore, Pakistan on Wednesday, May 27, 2009.
AP Photo/K.M. Chaudary
An injured police officer is rescued by rescue workers at the site of a suicide car bombing in Lahore, Pakistan on Wednesday, May 27, 2009.
AP Photo/K.M. Chaudary
Pakistani rescue workers remove a dead body from the site of a suicide car bombing in Lahore, Pakistan on Wednesday, May 27, 2009.
AP Photo/K.M. Chaudary
Pakistani rescue workers remove a dead body from the site of suicide car bombing in Lahore, Pakistan on Wednesday, May 27, 2009. Wednesday's attack was the third major strike in Lahore in recent months.
AP Photo/K.M. Chaudary
Attackers with rifles stepped from the car and opened fire on the intelligence agency building in the city of Lahore, then set off a massive blast when security guards returned fire, officials said.
AP Photo/K.M. Chaudary
Pakistani police officers examine a crater at the site of a suicide car bombing in Lahore, Pakistan on Wednesday, May 27, 2009.
AP Photo/K.M. Chaudary
Lahore, Pakistan's second-largest city, sits near the Indian border and is considered a liberal, cultural capital. Assaults there have heightened fears that militancy in nuclear-armed Pakistan is spreading well beyond the northwest region bordering Afghanistan.
AP Photo/K.M. Chaudary
Pakistani rescue workers remove an injured police officer from the site of suicide car bombing in Lahore, Pakistan on Wednesday, May 27, 2009.
AP Photo/K.M. Chaudary
Pakistani paramilitary troops arrive at the site of suicide car bombing in Lahore, Pakistan on Wednesday, May 27, 2009.
AP Photo/K.M. Chaudary
Pakistani paramilitary troops jump from their truck as they arrive at the site of suicide car bombing in Lahore, Pakistan on Wednesday, May 27, 2009.
AP Photo/K.M. Chaudary
Pakistani rescue workers struggle to recover an injured victim from the rubble at the site of suicide car bombing in Lahore, Pakistan on Wednesday, May 27, 2009.
AP Photo/K.M. Chaudary
Pakistani security officials and rescue workers gather at the site of suicide car bombing in Lahore, Pakistan on Wednesday, May 27, 2009.
AP Photo/K.M. Chaudary
A police building collapsed in the Lahore blast, and rescuers rushed to free officers buried in the rubble.
AP Photo/K.M. Chaudary
Pakistani security officials examine the site of the car bombing in Lahore, Pakistan on Wednesday, May 27, 2009.
AP Photo/K.M. Chaudary
An injured victim of the car bombing, receives initial treatment at a local hospital in Lahore, Pakistan on Wednesday, May 27, 2009.
AP Photo/K.M. Chaudary
Pakistani police officers arrest a suspect, center, from near the site of the car bombing in Lahore, Pakistan on Wednesday, May 27, 2009.
AP Photo/K.M. Chaudary
Pakistani army troop and local residents gather at site of car bombing in Lahore, Pakistan on Wednesday, May 27, 2009.
AP Photo/B.K.Bangash
People gathered at a spot of an explosion in Lahore, Pakistan on Wednesday, May 27, 2009.
CBS
The blast mid-morning Wednesday was powerful enough to shear walls off buildings in the main business district of Lahore.