A picture released on Monday shows what it said is Jordan's air force personnel air-dropping urgent medical aid to the Jordanian field hospital in Gaza. Reuters

The Israeli army said on Monday it had "coordinated" with Jordan to air-drop vital medical supplies to a field hospital in the besieged Gaza Strip, more than four weeks since the start of the war.

"Overnight, in coordination with the IDF (Israel Defense Forces), a Jordanian airplane dropped medical equipment and food to the Jordanian Hospital in the Gaza Strip," the Israeli army said in a statement.

"The equipment will be used by the medical staff for patients."

Jordan's King Abdullah II announced early on Monday that his country's air force air-dropped at midnight "urgent medical aid" to the field hospital.

"This is our duty to aid our brothers and sisters injured in the war on Gaza," he said, adding: "We will always be there for our Palestinian brethren."

Agence France-Presse