This photo provided by the Syrian anti-government activist group, Ghouta Media Center, GMC, which has been authenticated based on its contents and other AP reporting, shows children receiving treatment at a hospital in Hazeh in eastern Ghouta, the only remaining rebel stronghold near the capital, Damascus, Syria, Monday, Feb. 5, 2018. The Syrian Observatory for Human Rights says waves of airstrikes hit at least five neighborhoods in the eastern Ghouta suburb. (Ghouta Media Center via AP)
This frame grab from video provided by the Thiqa News Agency, shows a Turkish military convoy near Tel al-Eiss in the province of Aleppo, Syria, Monday, Feb. 5, 2018. Turkey's state-run Anadolu Agency says a Turkish military convoy was dispatched to establish an observation post in northwest Syria, on Monday. (Thiqa News via AP)
This photo provided by the Syrian Civil Defense group known as the White Helmets, shows Civil Defense workers digging for survivors underneath a damaged building after airstrikes hit a rebel-held suburb near Damascus, Syria, Monday, Feb. 5, 2018. Syrian opposition activists said more than one dozen people killed in new airstrikes. (Syrian Civil Defense White Helmets via AP)
This photo provided by the Syrian Civil Defense group known as the White Helmets, shows men pulling a survivor from the rubble after airstrikes hit a rebel-held suburb near Damascus, Syria, Monday, Feb. 5, 2018. Syrian opposition activists said more than one dozen people killed in new airstrikes. (Syrian Civil Defense White Helmets via AP)
This photo provided by the Syrian Civil Defense group known as the White Helmets, shows Civil Defense workers carrying an survivor on a stretcher after airstrikes hit a rebel-held suburb near Damascus, Syria, Monday, Feb. 5, 2018. Syrian opposition activists said more than one dozen people killed in new airstrikes. (Syrian Civil Defense White Helmets via AP)