Vijayawada: The centrally located Swarna Palace Hotel which was recently turned into Covid-19 centre to treat the Coronavirus-affected caught fire in the early hours of Sunday. At least three persons are believed to have succumbed to asphyxia when fire engulfed several floors of the hotel.Commissioner of police B Srinivasulu said that the toll would be announced later after ascertaining the facts.The injured were shifted to Ramesh hospital for treatment.About 50 COVID-19-affected persons were undergoing treatment at the facility.The details of the medical personnel who are providing treatment to the victims are yet to be revealed.