A Manor High School employee tested positive Tuesday for the coronavirus, school district officials said.

The person visited the Manor High School campus on Monday "unaware that they had contracted the virus," Manor Superintendent Royce Avery said in a Facebook video.

The Manor High School campus has been closed to the public since March 13, and only Manor school district staff with special permission have been allowed to enter, Avery said.

Two janitors went into the empty building and disinfected the area the person had occupied, Avery said. Those janitors will monitor their symptoms at home for two weeks, he said.

"We’re waiting for further guidance from our health authorities on what further steps need to be taken," Avery said in the video. "Manor ISD will continue to monitor this situation and bring you updates as needed."

Manor Mayor Larry Wallace Jr. asked that anyone else in the city who has tested positive inform city officials of their diagnosis.

"It’s needed for individuals like this employee of the Manor school district to come forward and let us know if you happen to be positive for COVID-19," Wallace said in the same video.

CORONAVIRUS IN TEXAS: What we know, latest updates