More than 80 Palestinians were killed across Gaza on Thursday, according to health officials, as Israel intensified its strikes across the strip.

Hamas is seeking guarantees that a new U.S.-backed ceasefire proposal for Gaza would lead to the war's end, a source close to the militant group said on Thursday, as medics said Israeli strikes across the territory had killed scores more people.

Hospital staff and witnesses said at least 11 people were killed after a strike near tents housing displaced people on Friday.