Israel has faced global condemnation for back-to-back strikes on the biggest hospital in southern Gaza this week, which killed at least 22 people, including health workers, emergency response crews and five journalists.

The attack on the hospital came just after 10 a.m. local time on Monday when a balcony at the Nasser Hospital in Khan Younis was hit by what appears to be a tank shell, killing a Reuters cameraman and others. Nine minutes later, as a group of rescue workers and other journalists attended to the victims, they were hit as the Israeli military fired again on the hospital – a tactic known as a “double tap.”

New video obtained by CNN reveals that this second “tap” was in fact two near-simultaneous strikes. These second and third strikes appear to have caused most of the deaths.

Intentionally attacking rescue workers, journalists and other civilians is a violation of international humanitarian law and a war crime.

On Monday, Israeli Prime Minister Benjamin Netanyahu conceded the incident was a “tragic mishap.”

But on Tuesday, the Israeli military defended the assault on the hospital, claiming that six “terrorists” had been killed in the attack, which it said was directed at a “camera that was positioned by Hamas.” The Israel Defense Forces (IDF) said it was continuing to investigate “several gaps” in its understanding of what happened. It insisted that the IDF “does not intentionally target civilians.”