At least 15 people died in southern Pakistan on Monday when a lorry rammed into a coach, a police official said.
The death toll from Friday's suicide bombing targeting an election rally in south-western Pakistan has climbed to 140, officials said.
Nawaz Sharif was sentenced in absentia last week to 10 years in prison by a corruption court.
Thousands flocked to the funeral Wednesday of a politician killed by a Taliban suicide bomber in northwestern Pakistan's Peshawar, hours after the explosion left 20 dead in the first major attack ahead of July 25 polls.
A local leader of the Awami National Party (ANP), Haroon Bilour, was among those killed in the attack in the city of Peshawar late on Tuesday.
Pakistan will deploy 371,388 troops to polling stations across the country to ensure free and fair elections on July 25, the army said Tuesday.
Pakistani authorities on Sunday arrested the son-in-law of ousted Prime Minister Nawaz Sharif, who was on Friday sentenced in absentia to 10 years in prison over a corruption ruling linked to his family's purchase of luxury flats in London.
The three-time former prime minister and his daughter are currently in London.
The anti-graft court ruled that the Sharif family bought properties in London with the money plundered from Pakistan in the 1990s.
At least 19 people are dead and scores more injured in the wake of heavy monsoon rains in the central Pakistani province of Punjab.
Pakistan's top court on Thursday banned another loyalist of former prime minister Nawaz Sharif from politics for five years, in a decision that raised questions about the credibility of national elections next month.