Hundreds of mourners in Pakistan have attended the funerals of three schoolgirls and two soldiers killed in a suicide bombing that targeted a school bus.

A devastating blast targeted a school bus in Pakistan's southwest Balochistan province, killing at least six people, including four children, and injuring 38 others, Al Jazeera reported, citing an official statement.

At least six killed and dozens wounded in a blast targeting a school bus in Khuzdar, Balochistan, officials say.