There was no indication of it being a militant attack, officials said.
The latest videos of Grumpy Cat, or the latest militant attack in Afghanistan's Ghazni?
Mr. Gandapur is the third lawmaker from Mr. Khan's party to die in a militant attack this year.
Mr. Kanj, who also lived in Boston for 17 years, died leading a militant attack in Lebanon.
On Thursday, Pakistanis commemorated the fifth anniversary of the death of Prime Minister Benazir Bhutto in a militant attack in 2007.
Still, rumors of an impending militant attack on Islamabad, the capital — and not necessarily on an American target — coursed through diplomatic and security circles last weekend.
One policeman and a civilian were killed, and 10 people were wounded in what officials said was the first such militant attack in two years.
Fears are growing that a major militant attack before May 11, particularly one targeting a major political leader, could have a destabilizing effect on the vote itself.
At least seven people were killed early Tuesday in a militant attack on a power grid station outside Peshawar, the provincial capital of insurgency-riven Khyber Pakhtunkhwa Province.
Concern in Cairo about the tunnels spiked last August, when 16 Egyptian soldiers died in a militant attack on a military outpost in Sinai.
The two men are already subject to lawsuits related to the charges.A Nigerian oil field has been shut down after a militant attack.
