A huge explosion rocked Pakistan's main northwestern city of Peshawar on Saturday, police and residents said.
"It was a very big explosion. I could see smoke rising from the scene," Asad Ali, a resident, said by telephone from Peshawar. Police said they were investigating.
The bomb attack killed at least six people.
"The frontside of the building has collapsed. Over two dozen cars have been destroyed," a Reuters witness said.
A Taliban suicide bomber earlier crashed his explosives-laden truck into a police station in Bannu, also in northwestern Pakistan, killing six people and wounding 30, police said.