Trump slams Putin for supporting Syria amid gas attack claims

President Trump slammed Russia and President Vladimir Putin for continuing to back Syria amid new allegations the embattled nation used chemical weapons on its own people.

“Many dead, including women and children, in mindless CHEMICAL attack in Syria. Area of atrocity is in lockdown and encircled by Syrian Army, making it completely inaccessible to outside world,” Trump tweeted Sunday morning.

“President Putin, Russia and Iran are responsible for backing Animal Assad."

The full-throated rebuke of Putin is a major move for Trump, who’s come under fire for wanting to have a better relationship with the Russian strongman.

At least 40 people were killed in a chemical attack on Douma, a Syrian town controlled by rebels, activists monitoring the conflict said.

RELATED: Suspected April 2018 gas attack in Syria

Russian military aiding Syrian strongman Bashar al-Assad on Sunday denied the government launched an attack.

Trump called on Syrian leaders to allow medical help into the city, where many of the victims reportedly suffocated.

“Big pay,” he said over a pair of tweets.

“Open area immediately for medical help and verification. Another humanitarian disaster for no reason whatsoever. SICK!”

Just a year ago, the U.S. launched 59 Tomahawk missiles at Syria after allegations of a chemical weapon attack on another rebel-held city.

Sen. Susan Collins (R-Maine) also blamed the Kremlin for the chemical attack because it supported the Assad regime.

“ It is further reason why it is so important that the President ramp up the pressure and the sanctions on the Russian government because without the support of Russia I do not believe that Assad would still be in office,” she said Sunday on CNN’s “State of the Union.”