Amid the escalating violence, US President Donald Trump said he and Russian President Vladimir Putin are in agreement that the hostilities must end immediately.

Israel has conducted roughly 150 strikes on Iran over two days, while Iranian forces have fired roughly 200 ballistic missiles at Israeli territory in addition to scores of drones, according to an Israeli military official.

A new explosion was heard at a key uranium enrichment site in central Iran on Friday morning, hours after Israel launched unprecedented air strikes against the Islamic Republic's nuclear programme.