A hospital in Maharashtra's Ahmednagar - where around 85 people are being treated for the COVID-19 virus - issued a frantic SOS on Tuesday - that its oxygen reserves would run out in hours. "Right now there is shortage of oxygen... there has been shortage for the past few days but somehow we were managing. Today there is an acute crisis and we have only three-four hours left... it is a grim situation," Dr Satish Sonavane of the Maccare Super Speciality Hospital said in a video appeal.