One of the state's first confirmed coronavirus patients worked in the Travelers Towers office complex in Southfield, Crain's has learned.

An email obtained by Crain's says that an employee in the complex tested positive for COVID-19 and that the property manager, Newmark Knight Frank, has been in contact with the health department.

"We have rolled out a responsive plan and will continue to take proactive measures to help protect the health and safety of our tenants, clients, colleagues and their families," NKF said in a statement.

Fred Liesveld, head of the local NKF office, declined to comment Wednesday evening. The email was from a property manager for NKF.

It's not known which company employs the patient.

"The employee has not been in the building since March 4 and came down with symptoms on March 8," the email reads. "Based on our conversations with the health department, there is no reason to believe other employees or tenants in the building are at risk for contracting the virus.

"Building management has taken all necessary cleaning precautions recommended by the health department. Attached please find an updated building cleaning protocol sheet that we have discussed with our cleaning contractor and they will implement immediately. Each tenant needs to review this attachment as well — there is important information each tenant should be aware of regarding recommended cleaning within their suite and visitor protocol."

State and local health officials said there are two Michigan cases involving a man from Wayne County and a woman from Oakland County.

Travelers Towers I and Travelers Towers II in Southfield sold in 2013 for $25.1 million to New York City-based Time Equities Inc. when the buildings totaling about 810,000 square feet were only about half full.

According to CoStar Group Inc., a Washington, D.C.-based real estate information service, Travelers Towers I is 471,500 square feet with 45 tenants occupying 80% of its 18 floors.

Travelers Towers II is 339,000 square feet with six tenants occupying nearly all of the 13-story building.