Two Israeli missiles hit a building inside a main Gaza hospital on Sunday, destroying the emergency and reception department and damaging other structures, medics said.
Health officials at the Al-Ahli Arab Baptist Hospital evacuated the patients from the building after one person said he received a call from someone who identified himself with the Israeli security shortly before the attack took place.
No casualties were reported, according to the civil emergency service.
The Israeli military was looking into the report, a spokesperson said.
Images circulating on social media, which Reuters could not immediately verify, showed dozens of people leaving the premises, with some appearing to be dragging sick relatives on hospital beds.
The Hamas-run government media office condemned the attack and said in a statement that Israel was deliberately destroying Gaza's healthcare system.
Israel says Hamas systematically exploits civilian structures and that its fighters regularly embed in Gaza's hospitals, which the group denies. Israeli forces have carried out numerous raids in medical facilities in the enclave.
Harvard rejects Trump demands, gets hit by $2.3 billion funding freeze
All-female space flight returns to Earth
Indian jeweller Choksi accused in nearly $2 bln bank fraud case arrested
Nobel prize-winning novelist Mario Vargas Llosa dies at 89
Death toll in Russian missile strike in Ukraine's Sumy rises
