The chief of the United Nations agency says a “gruesome milestone” has been reached today as the death toll of UNRWA workers killed in Gaza has surpassed 300, Al Jazeera reports.

“The vast majority of staff were killed by the Israeli Army with their children & loved ones: whole families wiped out,” Philippe Lazzarini wrote in a post on X.

“Several were killed in the line of duty while serving their communities. Those killed were mostly UN health workers and teachers, supporting their communities.

“Nothing justifies these killings. Impunity will lead to more killing. Those responsible must be held accountable.”