Gunmen attacked Iranian President Mahmoud Ahmadinejad’s election campaign centre in the southeastern Iranian city of Zahedan on Friday, wounding three people including a child, the official IRNA news agency said.

It said the gunmen, on motorcycles, opened fire at the centre at around 14.30 GMT a day after a suicide bomber killed 25 people and wounded 125 others in an attack on a Shiite mosque in Zahedan.

Iran’s state-broadcaster said the pan-Arab television channel Al-Arabiya reported that the Jundullah (Soldiers of God) Sunni rebel group said it was behind Thursday’s mosque attack. An official said those behind the bombing had been hired by the US.

Zahedan is the restive capital of Sistan-Baluchistan province bordering Pakistan and Afghanistan.

“Three knife-wielding people on motorbikes stopped outside the centre on Saadi Street, cursed, made threats and tore up billboards,” Mohammad Reza Zahed Sheikhi, who heads Ahmadinejad’s election office, told IRNA.

He said that as campaign workers for the June 12 presidential election went to protest, “the attackers pulled out guns and shot at them”. Two campaign workers, Nasser and Khodadad Miri, received arm, stomach and shoulder injuries and were taken to hospital. The child was also shot in the stomach and was undergoing surgery, he told IRNA.