CAIRO, Nov 12 (Reuters) - An Israeli airstrike on a building at Nasser Hospital in southern Gaza, killed at least six people, including a surgeon, and wounded 20 others early on Thursday, a spokesman ​for Gaza’s civil defence service told Reuters. There was no immediate comment ​from the Israeli military.

Mahmoud Basal, the spokesperson for the territory’s ⁠civil defence, said the Israeli airstrike hit the surgery department of the ​hospital in Khan Younis, causing extensive damage.

Medics identified the dead surgeon as ​Rezik Abushira.

Reuters video from inside the hospital showed extensive damage, with rubble and furniture strewn across rooms and wires dangling from damaged ceilings. People carried injured patients on ​stretchers through debris-covered corridors, while others helped the wounded walk through the ​wreckage. Several bodies were also seen being carried away as firefighters worked outside.

In ‌a ⁠statement, a Hamas spokesperson described the strike as a “fully-fledged war crime”.

Israel, which has stepped up its attacks on the enclave, says Hamas is trying to regroup and rebuild its arsenal. Hamas says it is committed to ​a year-old ceasefire and ​accuses Israel of ⁠trying to undermine the agreement.

At least 1,600 Palestinians have been killed in Israeli attacks in Gaza since ​the deal was agreed, according to the territory’s health ​officials, while ⁠Israel says four soldiers have been killed.

Gaza health authorities say more than 74,000 people have been killed since Israel began its assault on Gaza in ⁠October ​2023. Israel launched its offensive after Hamas-led gunmen ​led an attack on southern Israel in which it says about 1,200 people were killed.