Roundup: Eight security personnel, 4 militants killed in Pakistan

At least eight security personnel and four militants were killed and many others injured in separate incidents of bomb blasts and clashes in Pakistan on Friday, local media and officials said.

The worst attack took place in the country's southern port city of Karachi in the morning where two policemen were killed and 15 others injured in a bomb explosion.

Senior Superintendent Police, Rao Anawar, said that some unknown militants blew up explosive materials fixed on a motorbike with a remote controlled device as soon as a police bus passed by it and fled the scene.

In a separate incident, four policemen were killed when some unknown militants ambushed their vehicle in Loralai area, a main district in the country's southwest Balochistan province.

In another incident in Loralai, some unknown gunmen shot sown a police officer when he was travelling to the country's east Punjab province by a passenger van.

Police said that the militants forced the officer to alight from the van and opened fire at him, leaving the body at the main highway.

Fourth attack happened in South Waziristan agency where two soldiers were killed and two others injured when their vehicle hit a landmine.

In another incident in Karachi, four militants of a banned outfit were killed in a gunbattle with police.

Officials said that the cops conducted a search operation on an intelligence tip-off of presence of the terrorists who were involved in activities of target killings, bomb blasts and extortion in the city.

No group claimed responsibility for any of the attacks yet. Endi