At least 13 people have been killed in a blast outside Gaza City’s biggest hospital, the Hamas-run health ministry in Gaza says.

BBC Verify has verified graphic videos showing badly injured and possibly dead people lying outside the hospital.

The Israeli military has confirmed it struck an ambulance that it says was being used by Hamas operatives.

It did not say where the air strike took place.

“An IDF aircraft struck an ambulance that was identified by forces as being used by a Hamas terrorist cell in close proximity to their position in the battle zone,” it said in a statement.