PESHAWAR, Pakistan (AFP) - Two people were killed and about a dozen wounded when a motorbike bomb exploded in northwest Pakistan late on Tuesday, police and hospital officials said.

The low intensity bomb was detonated by a remote control device in the Imamia Colony neighbourhood of Peshawar, the main city in Khyber Pakhtunkhwa province on Afghanistan's border, senior police official Khalid Mahmood Hamdani said.

"It was a remote controlled device planted on a motorbike which went off in a street," he told AFP.

Two people were killed and about a dozen others were wounded, he said adding that the blast partially damaged three nearby houses.

Doctor Jamil Shah, spokesman for the city's Lady Reading Hospital, confirmed the toll.

"We received two bodies and 11 injured, two of them are in critical condition," he said.

The device carried about 4kg of explosives, chief of the city's bomb disposal squad, Shafqat Malik told AFP. The bomb was planted on a motorbike, he said.

No one immediately claimed responsibility for the blast.

Pakistan's northwestern province of Khyber Pakhtunkhwa has long been plagued by Al Qaeda and Taleban-linked militancy and the country's military has staged numerous operations against the insurgents.