Isis has claimed responsibility for a deadly bomb attack near a polling station in Quetta, Pakistan, on the day of the country's general election.
Officials say the death toll has risen to at least 32, with scores more wounded. Isis claimed in its Amaq news agency that the attack was carried out by a suicide bomber, but did not provide further detail or evidence for its claim.
A witness told The Independent it looked like the attack targeted a police van.
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Majeed Akbar said: "The explosion occurred near a school where polling was taking place. There was a cloud of smoke after the blast, it filled the sky and then after that I saw a pool of blood, dead bodies and others injured."
Authorities have yet to comment on the nature of the blast. A spokesman for Quetta hospital, Waseem Baig, said 15 dead bodies were brought in to the hospital and 33 injured are under treatment there, a few of whom are in a serious condition.
Jaffer Kakar, a doctor, said two children and five policemen are among the dead.
Quetta, where the bombing took place, is the capital of Baluchistan province, which saw the worst of the pre-election violence.
Earlier this month, a suicide bomber killed 149 people at an election rally in the town of Mastung, also in Baluchistan province. The attack was claimed by Isis militants.
About 371,000 soldiers have been stationed at polling stations across the country to prevent attacks, nearly five times the number deployed at the last election in 2013.
Citing security concerns, the election commission announced that internet and mobile phone services in several districts in Baluchistan have been suspended.
Election commission secretary Babar Yaqub told reporters that threats against polling stations, staff and even candidates have been received.
Hours earlier, militants lobbed grenades and opened fire at a military convoy escorting election staff and voting material in Baluchistan's district of Turbat, killing four troops.
Also on Wednesday, police said a shooting between supporters of two opposing political parties killed one person and wounded two in a village near the north-western city of Swabi.
Additional reporting by agencies
