FILE PHOTO: Men inspect a damaged house in Busra al-Harir town, near Deraa, Syria March 13, 2018. REUTERS/Alaa al-Faqir/File Photo
Men inspect a damaged house in Busra al-Harir town, near Deraa, Syria March 13, 2018. REUTERS/Alaa al-Faqir/File Photo

Thousands of Syrian flee as regime steps up bombardment in the south