World Health Organization chief said on Tuesday that one of its employees had been killed in Gaza alongside her six-month-old baby, husband and two brothers.

"My colleagues and I are devastated: we have lost one of our own in Gaza today," Tedros Adhanom Ghebreyesus said on social media platform X, showing a photo of the victim, named Dima Alhaj. "Reportedly multiple other family members sheltering in the same house were also killed," he added, without giving further details of how the family died and who was responsible.