The MTA says 23 of its employees have tested positive for coronavirus.

The city agency says that four of those infected work for the Long Island Rail Road and 19 with New York City Transit.

MTA Chairman and CEO released a statement saying in part: "The MTA is working closely with the state Department of Health to identify any colleagues who came in contact with employees who are confirmed, send them home to self-quarantine, provide access to necessary testing and immediately and aggressively disinfect the workplace."

PHOTOS: The impact of coronavirus around the world