US President Donald Trump on Thursday warned the US military will destroy bridges and electric power plants in Iran, even as the world awaited an end to the conflict.

The US military "hasn't even started destroying what's left in Iran. Bridges next, then ​Electric Power Plants," Trump wrote on social media, urging Iran's leaders to act fast.

"Our Military, the greatest and most powerful (by far!) anywhere in the World, hasn’t even started destroying what’s left in Iran. Bridges next, then Electric Power Plants! New Regime leadership knows what has to be done, and has to be done, FAST!" 

Earlier, posting a video of the attack on a long bridge, he said: "The biggest bridge in Iran comes tumbling down, never to be used again — Much more to follow! IT IS TIME FOR IRAN TO MAKE A DEAL BEFORE IT IS TOO LATE, AND THERE IS NOTHING LEFT OF WHAT STILL COULD BECOME A GREAT COUNTRY!"

Meanwhile, Iran's attacks on its Gulf neighbours continued unabated.