The International Committee of the Red Cross said 22 people were killed in a shell attack on Friday that damaged its Gaza office, which is surrounded by hundreds of displaced persons living in tents, AFP reports.

The ICRC did not say who fired the “heavy calibre projectiles” but in a statement on social media platform X said the shells “damaged the structure of the ICRC office”.

It said 22 bodies and 45 wounded had been taken to a nearby Red Cross field hospital after the shelling, and there were “reports of additional casualties”.

The health ministry in Gaza said there were 25 dead and 50 injured in the shelling which it blamed on Israel. The ministry said Israeli shelling had “targeted the tents of the displaced in the Al-Mawasi area” which is around the ICRC base.

An Israeli Defence Force spokesman did not acknowledge any role in the incident but said it was “under review”.

“An initial inquiry conducted suggests that there is no indication that a strike was carried out by the IDF in the humanitarian area in Al-Mawasi. The incident is under review,” the spokesman told AFP.