A bipartisan resolution aimed at limiting President Donald Trump's ability to wage war in Iran has failed in the US Senate, as the strikes continue.

The war powers measure was rejected in a 53-47 vote largely along party lines. It would have halted US military action in Iran without congressional approval.

Democrats argue that Trump has sidelined Congress and offered shifting reasons for the war. Most Republicans blocked the resolution, but some said they could change course if the war expands in the coming weeks.

The US and Israel began striking Iran on Saturday. The Islamic republic has responded by launching attacks on Israel and US-allied states in the Gulf.

With no clear off-ramp in sight, Defence Secretary Pete Hegseth said the war could last eight weeks - almost double the duration mentioned by Trump at the weekend.

-BBC