Assad described any suggestion that chemical weapons had been used as "100% fabrication" meant to justify United States attacks on a Syrian airbase. Eighty-seven people, including more than 20 children, died in the attack on April 4.
Other world powers have also condemned Assad for the April 4 attack - although Syrian ally Russian Federation continues to maintain there is insufficient evidence Assad carried out the attack. "And yet it is vital to investigate this incident as rapidly as possible and to send a clear signal that the worldwide community will not tolerate the use of such illegal and inhumane weapons", Gabriel said in a statement, published by the German Foreign Ministry. It's not clear whether it happened or not, how can you verify a video?
But Assad said it was possible to fake video and suggested the whole incident had been staged. We don't know if they were dead or who committed the attack. "Who committed the attack if there was an attack?" "You have no information at all, nothing at all, no one investigated".
US Secretary of State Rex Tillerson addressed controversial comments made by the White House press secretary on Tuesday comparing Syrian President Bashar al-Assad's tactics to those used by Adolf Hitler.
There was also little sign that Syria's greatest ally, Russia, has shifted its position. "It is an attempt by him to throw up false flags, create confusion", said department spokesman Mark Toner, alluding to what Assad said in the interview Wednesday.More news: Malala receives highest UN honour to promote girls' education
"We have heard from Washington, not only contradictory but also aggressive statements".
The chemical attack also invited deadly US air strike on the Shayrat airfield of the Syrian air forces, believed by Washington to be the base for warplanes that carried out the chemical attack.
It is not the first time that government forces have been accused of carrying out attacks with chemicals.
US Central Command said coalition aircraft were given the wrong coordinates by their partner forces, the predominantly-Kurdish Syrian Democratic Forces, for a strike meant to target IS militants south of their Tabqa stronghold, near the extremists' de facto capital, Raqqa. "Apart from anything else, we believe it's only the regime that has the capability to make such an attack".