Satellite images show damage at 51 Iranian military sites and repairs at some missile bases since February

Satellite images reviewed by BBC Verify show damage at 51 Iranian military sites since the conflict began on 28 February. The sites include air bases, naval facilities and compounds belonging to the Islamic Revolutionary Guards Corps. US officials state they have struck more than 13,000 targets across Iran.

BBC Verify identified damage to runways and aircraft at more than a dozen locations. At Mehrabad International Airport, strikes on 7 March destroyed at least 17 aircraft in the military section. Between 2 and 17 April, US-Israeli attacks at Shiraz Airbase hit at least 13 planes.

Multiple vessels and buildings were damaged at Bandar Abbas Naval Base in the opening days of the war. Satellite images from 4 March showed smoke rising from a damaged ship and the administrative section of the port. Multiple ships were also heavily damaged at Konarak naval base.

Satellite images show extensive damage to the IRGC naval headquarters and its general headquarters in eastern Tehran. The naval force commander, Gen Alireza Tangsiri, was killed in an Israeli operation in late March. The headquarters of the IRGC itself has also been damaged.

Images show roads cleared of debris and tunnels excavated at the Tabriz missile base. Construction vehicles and heavy machinery are visible at the site in recent satellite images. Tehran has used the ceasefire, in place for more than a month, to conduct repairs at some key missile facilities.

The private intelligence company Janes estimates there are 197 military and IRGC bases in Iran. BBC Verify's count of 51 damaged sites is described as a partial assessment because many facilities remain secretive. On Tuesday and Wednesday night, US and Iranian forces exchanged fresh waves of strikes after a US helicopter was downed in the Gulf.