A shooting involving U.S. Navy sailors in Maryland on Tuesday left two people critically wounded and the suspect dead, officials said.

Officials responded to the shooting about 8:20 a.m. at Riverside Technical Park in Frederick, about 52 miles northwest of Washington, police said Tuesday.

Frederick Police Chief Jason Lando said officers found two men with gunshot wounds. The victims were taken to Baltimore Shock Trauma, where they were listed in “critical condition,” Lando said.

Authorities identified the suspect as a 38-year-old Navy hospital corpsman, who, after shooting the two men, drove about 10 minutes to the U.S. Army’s Fort Detrick military base, where he was shot.

“The U.S. Navy can confirm there was an active shooter incident at Fort Detrick, Maryland involving U.S. Navy sailors,” a U.S. Navy spokesperson told NBC News.

No other injuries were reported.

The FBI’s Baltimore Field Office was assisting the Maryland State Police and Frederick County Police in the investigation.

“Currently there are two victims and one suspect is down,” police said in a tweet early Tuesday. “Please avoid the area of Progress Drive and Opossum town Pike.”

Several schools in Frederick County were placed on a brief lockdown about 8:30 a.m. as police investigated. The lockdown has since been lifted.

The Navy will continue to provide updates on the situation as more details come in, the U.S. Navy spokesperson told NBC News.

A news conference has been scheduled for 2:30 p.m.

This is a breaking news story. Please check back for updates.