The stream of wounded in Imam Khomeini hospital in Tehran had been steady since Friday. On Sunday evening it became a flood. A renewed wave of Israeli strikes on Iran’s capital overwhelmed the hospital’s emergency unit, turning it into what one doctor described as a “bloodbath”.

“It was a bloodbath. We were overwhelmed by chaos and the screams of grieving family members. Dozens upon dozens of people with life-threatening injuries, minor wounds and even bodies were brought in,” a doctor at the emergency unit of the hospital told the Guardian on Monday under condition of anonymity.

As fighting between Israel and Iran entered its fourth day, Iranian hospitals were receiving a surge of wounded people, overwhelming medical facilities and exhausted personnel. Medical staff described scenes of bloody chaos and an influx of injured people that has only seemed to grow as Israeli strikes increased in intensity.