A suicide bomber on Friday targeted a senior Pakistani police commander in the northwestern city of Peshawar, killing at least six people and wounding 11 others, officials said.
It was not clear whether Abdul Majeed Marwat, commander of the paramilitary Frontier Constabulary for Khyber Pakhtunkhwa province, was hurt in the attack.
"It was a suicide attack, the target was the FC commander," police official Arshad Khan told AFP.
The attack took place when the police chief was passing through a military checkpost in the busy cantonment area of Peshawar.
"We have received six dead bodies, including two women. Eleven people were also injured," Sayed Jameel Shah, a spokesman for Peshawar's main Lady Reading Hospital, told AFP.
There was no immediate claim of responsibility but Pakistani police, soldiers and paramilitary units are frequently targeted by domestic Taliban, who have been fighting an insurgency since July 2007.
There has been a recent spike in violence in the northwest as the country prepares to hold historic elections on May 11. The vote will mark the first democratic transition of power in Pakistan, which has been governed by four military rulers.