Ten people were killed and three dozen others injured when two bombs went off near the secular Awami National Party's election offices in the southern port city of Karachi hours after thousands of Pakistanis began voting across the country.
The first blast went off near the election office of Amanullah Mehsud, an ANP candidate contesting polls to the Sindh Assembly. The powerful explosion was heard from several kilometres away. Mehsud escaped unhurt though several ANP workers were among the dead and injured.
The second blast went off minutes later near a polling station and an ANP office in the same area as rescue teams were busy rushing the victims of the first attack to hospital. The second blast triggered a stampede at the polling station and disrupted voting for some time.
Five persons were injured by a blast near a polling station at Charsadda Road in Peshawar, the capital of the northwestern province of Khyber-Pakhtunkhwa. The bomb was attached to a motorcycle parked near the polling station.
Several persons were injured in a blast in Quetta, the capital of the restive southwestern province of Balochistan.
No group claimed responsibility for the attacks though the banned Tehrik-e-Taliban Pakistan has repeatedly targeted the ANP and other secular-leaning parties like the Pakistan Peoples Party and Muttahida Qaumi Movement during the campaign period. Several ANP and MQM members, including candidates, were killed in Taliban attacks.
Days before the polls, the Taliban threatened it would carry out attacks, including suicide bombings, on election day. The threat heightened concerns about security for the polls, which mark the first democratic transition of power in Pakistan's history.