Missiles hit school, hospital in Syrian border town, 14 dead - residents

People gather near what is said to be a hospital damaged by missile attacks in Azaz, Aleppo, Syria, February 15, 2016 in this still image taken from a video on a social media website. REUTERS/Social Media Website via Reuters TV

AMMAN/BEIRUT (Reuters) - About 50 civilians were killed when missiles hit five medical centres and two schools in rebel-held Syrian towns on Monday, the United Nations and residents said.

The carnage occurred as Russian-backed Syrian troops intensified their push toward the rebel stronghold of Aleppo.