The Daily Star's FREE newsletter is spectacular! Sign up today for the best stories straight to your inboxAn entire intensive care unit full of Covid-19 patients has reportedly died in an Egyptian hospital after the ward's oxygen supply failed.Harrowing footage of shell-shocked nurses at the El Husseineya Central Hospital in Ash Sharqia province has gone viral online, bringing light to the catastrophe even as authorities try to downplay what happened.Video clips uploaded to social media show hospital staff desperately trying to perform CPR on dying patients while the sounds of screaming and crying can be heard echoing through the ward.According to reports, up to seven patients died after the ICU's oxygen levels almost dipped below two.