Medical charity Medecins sans Frontieres (MSF) says that three people have been killed in an airstrike on a hospital supported by the group in southern Syria.
Six others were injured in the strike on a field hospital in Tafas, 12 kilometres from the Jordanian border, on Friday night, the charity says, and 20,000 people fled the town for nearby countryside.
"Since the start of this year alone, 13 health facilities in Syria have been hit, confirming that hospitals and clinics are no longer places where patients can recover in safety," MSF warns.
MSF did not assign responsibility for the airstrike. The Syrian government and allied Russian forces have been carrying out intense airstrikes in the area in support of a government offensive.