Paramedics and volunteers transport a wounded man to hospital in the city of Quetta after a blast ripped through a religious procession on September 29 in the Mastung district of Pakistan's southwestern Balochistan Province.
The deadly attack, a suspected suicide bombing, is said to have killed dozens during a birthday celebration for Islam's Prophet Muhammad.
A relative mourns the death of a blast victim at a hospital in Quetta. The attack is said to have killed more than 50 people.
A separate blast at a mosque in the northwestern Khyber Pakhtunkhwa Province killed at least four people.
No group has yet taken responsibility for the attacks.
An injured man receives treatment at a hospital in Quetta.
Both Balochistan and Khyber Pakhtunkhwa provinces border Afghanistan and have suffered attacks by Islamist militants in recent years.
People mourn as they gather around the body of a relative who was killed in the attack during a religious celebration in Balochistan Province.
Balochistan, Pakistan's largest province, borders both Afghanistan and Iran. The region is regularly targeted by Islamist militants, sectarian groups, and nationalist separatists.
Local residents stand at the site of the suspected suicide attack where some 500 people had gathered to celebrate the Prophet Muhammad's birthday. The day is known as Mawlid al-Nabi, and is often celebrated by distributing free meals to the poor.
Relatives mourn the death of a loved one at a hospital in Quetta on September 29.
A relative mourns the loss of a family member who died in the Balochistan explosion.
No group has claimed responsibility so far for the blast, which prompted authorities to declare a state of emergency in hospitals in Quetta, the provincial capital of Balochistan Province.
Hundreds of people were on hand to help the injured as they were transported to the hospital in Quetta.
People mourn the deaths of their relatives and friends.
The violence comes amid a recent surge in militant attacks, raising the stakes for security forces ahead of general elections in Pakistan, which have been scheduled for January.
A suicide bombing and separate blast ripped through two religious ceremonies in Pakistan on September 29, killing at least 56 people and injuring more than 60 amid events marking the birthday of the Prophet Muhammad, police and health officials said.