At least seven people were killed and around 20 were injured in a blast on a passenger bus in Pakistan?s eastern Punjab province on Saturday evening, media reports said.
Local TV channels said three women and a child were among the dead, while some reports said that the explosion, near the city of Kharian, some 35 km from Gujrat, a main city in the region, could have been a suicide attack.
However, the police did not confirm and said there were some 50 people on the bus when the blast took place. Eyewitnesses said that the bomb was taped below the back seat of the bus.
No group immediately claimed responsibility for the attack and the motive was reported to be unclear, but the blast came within a day of another attack, said to be a ?revenge? of the killing of al Qaeda chief Osama bin Laden deep within the country by US commandos.
At least 80 people were killed and 60 injured in northwest Pakistan on Friday as double suicide bomb attacks ripped through a military academy in the Shabqadar area, around 30 km north of city Peshawar, for which Pakistani Taliban claimed responsibility, saying it was the first in more to come.
Responsible for the most devastating terrorist attack on America in history, Osama bin Laden was killed by U.S. security forces in his compound in Abbottabad, 60 km from Islamabad, on May 2, putting Pakistan in a tight spot.
After the incident, Pakistani Taliban had threatened to carry out attacks to avenge bin Laden’s killing.