Five civilians have been killed in Ethiopia’s Amhara region after a drone strike hit an ambulance, witnesses told the BBC.

Three other people, including the head of a local hospital, were injured in the incident that happened in Wogel Tena town in north-eastern Amhara.

The attack occurred last week but was only confirmed on Wednesday due to communications restrictions imposed by the local authorities.

The driver of the ambulance, a pharmacist, and nearby construction workers were among those killed, witnesses said.

The federal forces are said to be using drones to target local militias as the violence that broke out in April continues to escalate.

Last month, the UN said it was troubled by drone strikes hitting civilian targets in Amhara.

It said several people were killed in an attack on a school compound and a bus station.