Polling day took a deadly turn after ISIS targeted the Balochistan provincial capital of Quetta with a blast that killed 31 people and left 28 injured. Watch video of the devastating aftermath.
A suicide bomber blew himself up outside a polling station in the city of Quetta. The Islamic State group said it had carried out the attack.
Elsewhere, minor blasts and clashes left several injured and two dead.
Millions have voted in the polls, with the parties of ex-cricket star Imran Khan and disgraced former PM Nawaz Sharif competing for the most seats.