Several wounded by bomb at police HQ in Islamabad

ISLAMABAD (Reuters) - There were several people wounded by a bomb blast on Thursday at police headquarters on the outskirts on Islamabad, a senior police official said.

"I am at the site of the blast. I have seen several people wounded, eight or nine," police official Khalid Mehmood told Reuters.

Security in the city has been stepped in the wake of a suicide truck bomb that killed 55 people and destroyed the Marriott hotel on September 20. There are fears of more bomb attacks in reaction to an army offensive against Islamist militant strongholds in the tribal areas bordering Afghanistan.

(Reporting by Zeeshan Haider; Editing by Simon Cameron-Moore)