Max Healthcare, which runs a network of hospitals, posted an appeal on Twitter for emergency supplies of oxygen at its facility in Delhi. "SOS - Less than an hour's Oxygen supplies at Max Smart Hospital & Max Hospital Saket. Awaiting promised fresh supplies from INOX since 1 am," the company said. At Sir Ganga Ram hospital in Delhi, 25 "sickest patients" have died in the last 24 hours, a statement from the hospital said.