A bomb placed by an ethnic separatist group derailed a train in southwest Pakistan on Sunday, killing eight people, police and the militants said.
Three of the dead were children and another 20 people were wounded by the blast in Kashmor district, which caused several train cars to run off the track, said police official Mohammad Azeem.
Kashmor is in Sindh province but adjoins insurgency-hit Baluchistan. One of several ethnic Baluch separatist groups operating in the resource-rich province, the Baluch Republican Army, claimed responsibility. Al-Qaida-linked militants also have a presence there.
The group also blew up three gas pipelines last week, suspending supplies to millions of household for two days.
Local Pakistani TV channels showed footage of several badly damaged train cars lying off the track. Pakistani Railways Minister Saad Rafiq said officials were working to reopen the track at earliest.
Associated Press Writer Riaz Khan in Peshawar, Pakistan and Andul Sattar in Quetta, Pakistan, contributed to this report.