The US Senate on Thursday blocked a resolution introduced by Democrats aimed at halting the war on Iran until Congress authorizes combat operations.

This move reflects growing concern in Congress, even among Republican members loyal to President Donald Trump, about the war.

In detail, the Senate voted 49 to 47 against proceeding with the resolution on war powers.

The Republican-controlled US House of Representatives today backed legislation directing President Donald Trump to halt any US military action against Iran.

The vote was 214-208 in favor of the war powers resolution, with four Republicans joining Democrats in support.

The resolution, introduced by Democratic Representative Pramila Jayapal, directs Trump to 'stop the use of US armed forces in combat operations' against Iran unless Congress authorizes it.