At least 12 people were killed and 30 others injured when two moderate earthquakes jolted northern Pakistan on Saturday, local police said.
The earthquake measuring 5.7 on the Richter scale was centered 200 kilometers northeast of Peshawar, capital of the North West Frontier Province and it hit most of the northern Pakistan at 3:20p.m. (1020 GMT), Farhan Hayat of the country's seismic center toldXinhua.
A magnitude 5.5 aftershock was felt about 90 minutes later and was centered in the same region, he said.
He added that the earthquake was felt in major cities such as Islamabad, Rawalpindi, Peshawar, Muzafarrabad, Sawat and adjacent areas.
People in Islamabad left their houses and office buildings at the time of tremors.
10 people were killed when a bus, struck by a bolder set loose by the second quake, fell into a river in Batgram district, said the district police.
A six-year-old girl was killed in District Kohistan. Another man also died after the rooftop of the house collapsed, the local police said.
According to a report of official Associated Press of Pakistan,Jabori, Jagghan Sahalia and Pagar of Tehsil Balakot and parts of Mansehra district were badly affected and more than 150 houses in the area were damaged as a result of the tremor.
Relief and rescue teams started relief work in the affected area, the report said.
The Hindu Kush mountain range is one of the regions that low-intensity quakes are occasionally felt.
A magnitude 5.5 quake left 22 people killed, hundreds of housesdamaged and about 1,000 people homeless in Astore Valley of Pakistan's Northern Areas in November 2002.