Three more court buildings in Baltimore tested positive for the bacteria that can cause Legionnaires’ disease and they’ll be closed part of next week for remediation efforts, officials announced Friday.

Legionella bacteria was found in the water systems during “proactive” testing earlier this month at the Baltimore City District Court on East Fayette Street as well as the Clarence M. Mitchell Jr. Courthouse and the Elijah E. Cummings Courthouse, both located on Calvert Street.

The Circuit Court buildings closed early on Friday and will remain closed Monday and Tuesday “to implement safety protocols and begin remediation steps,” the Maryland Judiciary announced. On those days, emergency matters will be heard at the Baltimore City Juvenile Justice Center on North Gay Street.

The East Fayette District Court, meanwhile, remained open on Friday afternoon but officials said it would also be closed Monday and Tuesday, with emergency matters being temporarily moved to a District Court on Wabash Avenue.

On Friday, signs were visible in the East Fayette District Court alerting people to “water quality issues” and directing them not to drink from the building’s water supply, and instead drink bottled water. There was no mention of Legionella on the signs.

Precautionary testing also has been done at other city buildings and officials are waiting for results. That includes the Abel Wolman building on Holliday Street, the Benton Building on Fayette Street and City Hall.

Multiple government buildings in Baltimore have tested positive for Legionella in recent weeks, including multiple state-owned buildings at the State Center complex as well as two District Court buildings on Wabash Avenue and East Patapsco Avenue. In each of those cases, the state shut down the buildings and flushed and sanitized the water systems.

The Wabash and Patapsco courthouses continue to test positive for Legionella bacteria after those remediation efforts, the Maryland Judiciary disclosed on Friday. They remain open to the public with warnings not to drink the building’s water, and will be flushed and sanitized again on Dec. 28.

Legionella exists naturally in water bodies and can become a problem if it infiltrates pipes and grows, particularly in standing water. People can become infected if they ingest tiny droplets of water. Though most people don’t fall sick from exposure to Legionella, some can develop Legionnaires’ disease, a serious form of pneumonia.

City officials noted that Baltimore’s water system is designed to prevent bacteria growth through the use of chlorine and by keeping water in motion. As a precautionary step, the Department of Public Works has been conducting testing for the last several weeks.

City health officials have received no reports of confirmed cases of Legionnaires’ disease.

Baltimore Banner reporter Dylan Segelbaum contributed to this article.

Correction: This story has been updated to correct which courthouses will be closed.