Syria, Russia say Israeli war planes strike Syrian airbase
![This image made from video released by the Syrian Civil Defense White Helmets, which has been authenticated based on its contents and other AP reporting, shows a medical worker giving toddlers oxygen through respirators following an alleged poison gas attack in the opposition-held town of Douma, in eastern Ghouta, near Damascus, Syria, Sunday, April 8, 2018. Syrian opposition activists and rescuers said Sunday that a poison gas attack on a rebel-held town near the capital. The Syrian government denied the allegations, which could not be independently verified. (Syrian Civil Defense White Helmets via AP) Syria](https://i.cbc.ca/1.4610280.1523182850!/cpImage/httpImage/image.jpg_gen/derivatives/16x9_460/syria.jpg)
The Russian and Syrian militaries say Israeli war planes have carried out missile strikes on a Syrian airbase, hours after U.S. President Donald Trump warned of a "big price to pay" following reports of a poison gas attack on the rebel-held town of Douma.