An earthquake measuring five on the Richter scale has jolted northern Pakistan and Afghanistan.
There are no immediate reports of casualties, officials said.
They say that the epicentre was in the Hindu Kush mountain range in Afghanistan, about 250 km north of the Pakistani city of Peshawar.
At least 15 people were killed in February when s quake hit northern Pakistan, and around 9,000 died in two quakes in Afghanistan in 1998.
Pakistani seismologists say that the quake was felt in the north-western city of Peshawar, and in the Afghan capital, Kabul.
They say that its intensity was not immediately known.
But a spokesman told the Associated Press news agency that the town of Abbotabad, about 150 kms northeast of Peshawar, has been badly hit.