Iran has attacked US bases in Gulf states and tried to restrict Strait of Hormuz traffic as the conflict spreads across the region. (AFP pic)TEHRAN: Iran's Revolutionary Guards said on Friday they targeted a US early-warning radar in Bahrain, the first such claim of an attack on American military assets in a Gulf country since early September.

The Guards said the strike was in retaliation for what they described as an air attack on a telecommunications tower in Iran's southern Sirik county, in Hormozgan province, according to Iranian state media.

The claim came amid a fragile lull in the conflict between Iran and the US, which began with US and Israeli strikes on Iran on Feb 28 and has since spread across the region.