Satellite images have revealed new signs of damage to access routes and tunnels at Iran's underground Fordo enrichment facility which was targeted by Israel on 23 June, a day after the US dropped bunker-buster bombs on the site.

Previously unseen damage is also visible near tunnel entrances at Iran's Isfahan Nuclear Technology Centre after it was hit by the US. Meanwhile, there are signs work is already underway to fill in craters at the Natanz enrichment complex in the wake of US strikes.

A leaked US intelligence document has cast doubt on the overall impact of the strikes. Media coverage of its conclusions prompted an angry response from President Donald Trump.

Other new satellite images reveal previously unseen damage at a university in north-east Tehran and an area adjacent to a major airport west of the capital.

Israel, and subsequently the US, said strikes were aimed at preventing Iran from building a nuclear weapon. Iran has consistently denied those allegations, insisting its nuclear programme is for peaceful purposes.