British opposition leader Jeremy Corbyn has called for a war powers act that would stop the government of Theresa May from launching strikes without first consulting MPs.

Corbyn's remarks came a day after US, British and French forces struck multiple places in Syria following President Donald Trump’s orders for military action. Speaking on on Sunday, Corbyn said:  "I think parliament should have a say in this and I think the prime minister could have quite easily done that. She took a decision some time last week that we were going to work with (French President Emmanuel) Macron and Trump in order to have an impact on the chemical weapons establishment in Syria."

The US, British and French forces launched air strikes on Syria early Saturday in response to an alleged  chemical weapons attack outside Damascus last week.

Syria's Foreign Ministry denounced the strikes as a "brutal, barbaric aggression" aiming to impede a probe by the Organization for the Prohibition of Chemical Weapons (OPCW), a global watchdog.

Syria has strongly rejected any role in the alleged attack, which took place just as the Syrian army was about to declare full victory against the militants operating in the Eastern Ghouta region near Damascus.

Corbyn, who has issued a plea for an independent UN-led investigation of the chemical weapons attack, said that May “could have recalled parliament last week” or “she could have delayed until tomorrow when parliament returns.”