Police and state officials are investigating a break-in last month at the Maryland Department of Health headquarters — an incident in which the intruder or intruders searched desks and drawers — as well as a bomb threat.

The break-in happened over the Veterans Day holiday weekend in November, when the building at 201 W. Preston St. at State Center in Baltimore was closed for two extra days while officials investigated legionella contamination in the water system.

State officials also confirmed that there was a bomb threat at the building on Nov. 13, and that’s also being investigated by police.

A joint statement from the Department of Health and the Department of General Services, which maintains the building, described the break in as a “second-degree burglary” that’s being investigated by the Maryland Capitol Police.

The statement did not offer any details on the bomb threat or the break-in, but an email sent to employees and obtained by The Baltimore Banner said that “some offices, drawers, and desks were searched.”

The email also said that “fingerprints and DNA may have been collected and turned over to the Maryland State Police for further processing.”

Following the incidents, Maryland Capitol Police have increased foot and vehicle patrols, boosted staffing at building entries and added cameras and lighting, officials said.

Unions representing workers at the building expressed frustration with how the incidents were handled, and questioned whether the buildings are safe to work in. In addition to the health department security incidents, buildings at State Center have been closed down on a rotating basis so the water systems could be flushed and sanitized to eliminate the Legionella bacteria that can cause Legionnaires’ disease.

“Our members need to be safe,” said Stuart Katzenberg of AFSCME Maryland Council 3. “Far more needs to be done on staffing and ensuring the buildings are safe and secure.”

Todd Reynolds with AFT-Maryland said employees were notified of the bomb threat via email — which is only helpful for workers who were in front of their computers at that moment.

“I hope we all can agree that if there is a credible threat to the workforce to the extent that it requires evacuation, an email is not the best way to disseminate the information because not everyone has access to it immediately,” Reynolds said.

Correction: This story has been updated to correct the address of the building where the break-in occurred.