The leader of a Sunni militant group has been executed in Iran for his involvement in “terrorist” attacks in the Islamic state, state media report.

Abdolmalek Rigi, head of Jundullah, was hanged at dawn at Tehran’s Evin prison in the presence of the families of its victims, the Irna news agency said.

Mr Rigi was accused of being behind a series of deadly bombings and raids in the province of Sistan-Baluchistan.