Five people have been killed when two unknown gunmen opened fire on a police patrol vehicle and civilians in the western Iranian city of Sanandaj.
"The gunmen connected to counter-revolutionary cells opened fire on a police patrol vehicle and pedestrians in the Azadi square of Sanandaj [in Kurdistan province]," said police official Ebrahim Kazeminejad on Thursday.
"Five people, including four police officers and one civilian, were killed in this terrorist attack," Mehr news agency quoted Kazeminejad as saying.
He added that five police officers and four civilians were also injured.
In September, a bomb explosion near a military parade in West Azarbaijan Province claimed 12 lives and injured at least 80 people.
Shortly afterwards, Iran's Islamic Revolution Guards Corps (IRGC) said it had identified and killed all terrorists associated with the attack in an operation.