Are you listening, Mr. Assad?

“We have engaged into negotiations in good faith to adopt a resolution,” French Ambassador Francois Delattre told reporters in New York. “But make no mistake about it: We need a robust text,” he said.

Asked about the threat of a Russian veto of the measure, Delattre indicated that Russia would be harshly judged by history. “That would be a terrible responsibility in front of history,” he said.

British Foreign Minister Boris Johnson said he cannot understand how anyone on the UN Security Council could fail to sign up to a resolution condemning the attack.

Johnson said on Thursday during a visit to Sarajevo that he “cannot understand how anybody on the UN Security Council could fail to sign up to a motion condemning the actions of the (Assad) regime that is almost certainly responsible for that crime.”

Johnson described the attack in Idlib as “abominable and contemptible” and said “those who did it deserve international condemnation.”

In Turkey, President Recep Tayyip Erdogan has said he hopes Trump will take military action in Syria after this week’s attack.

Turkey’s state- run Anadolu Agency quoted Erdogan as reacting to news reports Thursday that Trump was mulling military action after the assault in the northern Syrian town of Khan Sheikhun.

It quoted Erdogan as saying Turkey would be prepared to do “whatever falls on us” to support possible military action. Turkey is a leading supporter of the opposition fighting to overthrow Assad.

Earlier, Turkish officials said that autopsies of the victims from the assault, which happened 60 miles (95 kilometers) from the Turkish border, show they were subjected to chemical weapons.

Meanwhile, two US military officials told NBC News that Syrian fixed- wing aircraft dropped suspected chemical weapons on civilians in Idlib earlier this week in a deadly attack which killed at least 83 people — including 25 children — and injured at least 350 others.

The US military saw the aircraft on a radar and watched them drop the bombs, the officials said. The radar soon picked up the flashes and booms in the opposition-held area of Syria.

The bombs hit a hospital run by the Al-Qaeda-linked Al-Nusra Front damaging operating rooms and injuring medical professionals, the officials said.

Soon after, civilians on the ground began responding in a way that is consistent with exposure to a nerve agent documented in horrific images of people writhing in pain, coughing and young children gasping for air.

One official said he believes there was a combination of two agents and while he does not believe one was chlorine, he would not say what they were.