A United Nations special envoy has called for urgent action against Myanmar’s military regime over its continued use of lethal violence to crush dissent, as the COVID-19 pandemic cuts a deadly swathe through the Southeast Asian nation.

There are hundreds of outstanding arrest warrants for health care workers who have been targeted for brutal treatment by the regime that overthrew the civilian government led by Aung San Suu Kyi in a coup on Feb. 1, the United Nations’ special rapporteur on human rights in Myanmar, Tom Andrews, said in an interview.

Over the following months, doctors went on strike to protest the coup along with thousands of other citizens who took to the streets, many of whom were killed or detained. The military this week annulled the results of last year’s general election that was deemed credible by international observers.