The oxygen shortage, which lasted for about an hour, reportedly also affected intensive care and maternity units at the facility, although there were no reports of fatalities on those wards.
It is not yet clear why there was an oxygen shortage and an investigation is under way, Obeidat said. The health minister had earlier said he felt a “moral responsibility” for what had happened.
A forensic doctor at Jordan’s health ministry, Dr Adnan Abbas, told Petra news agency that all six patients who died on Saturday were being treated for coronavirus.
About 150 relatives of the patients gathered outside the hospital, which was surrounded by a large deployment of police and security officers, who prevented the families from entering.
One of those waiting anxiously outside was Fares Kharabsha, whose parents are Covid-19 patients. He was inside when the oxygen ran out in the ward and said medical and civil defence workers and people from outside the hospital rushed with portable oxygen devices to try to prevent more deaths.
“They resuscitated a large number of people, including my father and mother,” he said. “I do not know how many, but I saw people who died.”
Another relative, Habis Kharabsha, complained of a lack of sufficient services at the hospital. “At the isolation department, there was only one doctor and two nurses for 50 or 60 patients; this is mad,” he said.