The World Health Organization said six people including four children were hurt Saturday in a strike on a polio vaccination center in northern Gaza.

"The Sheikh Radwan primary health care center in northern Gaza was struck today while parents were bringing their children to the life-saving polio vaccination in an area where a humanitarian pause was agreed to allow vaccination to proceed," WHO chief Tedros Adhanom Ghebreyesus, said in a message on X without saying who had launched the strike.

"Six people, including four children, were injured," he added.