Workers wearing hazmat suits have been spotted burying caskets in a mass grave on New York’s Hart Island – as the number of burials quadruples amid the coronavirus pandemic and the city’s death toll rises to more than 4,200. A dozen contracted laborers were seen digging and burying the caskets – some of which had names carved on them – on Thursday. The city has used Hart Island to bury New Yorkers with no known next of kin or whose family are unable to arrange a funeral since the 19th century. Typically, about 25 bodies are buried there once a week by low-paid Rikers Island jail inmates. That number began increasing last month as the new coronavirus spread rapidly and New York became the epicenter of the pandemic.