Transcript for President condemns alleged chemical attacks in Syria
Let's turn our attention now to the showdown with Syria president trump is promising a quick and forceful response to the suspected chemical weapons attack. That took place over the weekend this says he met with senior military advisors the president said. They are we making some major decisions over the next day or two ABC's Molly hunters following developments from London. This morning president jump making it clear nothing is off the table in Syria but make it decision as to what we do with respect to the horrible attack. That was made. Near Damascus. And. It will be Matt. And it will be met forcefully. The threat comes after a suspected chemical attack in Cuba town just outside Damascus controlled by rebels fighting Syrian president Bashar Al aside. It was an atrocious attack. It was horrible this is about humanity we're talking about humanity. They can't be allowed to happen. For the first time president trump criticized Russian president Vladimir didn't. A suns' most powerful supporter alongside Ron this. Talking bear responsibility for the today yeah today and if he does. It's going to be very tough it very tough. He'll pay a price of everybody's gonna pay a price he well everybody well. Besides regime denies using chemical weapons cleaning the videos are fabricated. Syrian activists took video of Russian specialist allegedly visiting the site of the attack. Activists tell ABC news they were on the ground for just twenty minutes and after their survey. Russia's foreign minister says there were no traces of chlorine or any other chemical substance used against civilians one year ago as suspected Sarin gas attack in Syria prompted president champ. To order military strength. You re an airfield as a warning from the sun. That airfield. Back up and running just days later a response over the latest suspected chemical attack could be more comprehensive according to keep global affairs correspondent mark erratic. If trump decides to want bristles again it could be a broader and larger strike. Missiles launched from US destroyers submarines and possibly B two stealth bombers. In hopes of thought takes it seriously this. Now it could at last year's one off didn't work so as market that if we do see a strike we need C a more powerful response. Though god we also meets the a response that coordinated with international allies as part of some greater strategy. Bank MS. It's true the American and French president have spoken several times in the last couple of days Molly thank you.
This transcript has been automatically generated and may not be 100% accurate.