Oil storage plant blast in Tehran after Trump warns Iran will be hit 'very hard'

( 9News )

A new wave of United States and Israeli strikes have shaken Tehran overnight after President Donald Trump warned "Iran will be hit very hard".

The Iranian state-affiliated Fars News Agency said US and Israeli bombing targeted an oil refinery in southern Tehran.

Massive plumes of flames lit up the sky in Tehran on Saturday night after the Iranian state news agency said that an oil storage facility was targeted in latest round of strikes. AP video showed the horizon glowing, then pillars of flame and billowing smoke.

It is among the first times a civil industrial facility has been targeted in the war.

Israel's military did not immediately comment on the targets of the latest strike, but said Israel had recently launched another round of strikes in Tehran.

Iran state media in response threatened to hit oil refineries in the northern Israeli city of Haifa.

The strikes lasted for about an hour, with thuds in the east, south and north-west of the city.

Earlier, Trump warned in a social media post on Saturday that more Iranian officials would become targets in the war, writing: "Today Iran will be hit very hard!"

In his comments on his Truth Social website, Trump noted the apology by Iranian President Masoud Pezeshkian for attacks on regional neighbours.

"Under serious consideration for complete destruction and certain death, because of Iran's bad behaviour, are areas and groups of people that were not considered for targeting up until this moment in time," Trump wrote, without elaborating.