Reports of an active shooter at Walter Reed military hospital in Bethesda, Maryland, on Tuesday were confirmed to be a drill, officials said.

Army Lt. Col. Audricia Harris, a Pentagon spokesperson, told Fox News there is no active shooter at the medical center.

“We are all clear.”

“Secure from the Code White,” hospital personnel tweeted.

That was after it was confirmed there was no active shooting incident.

Earlier on Tuesday, Rep. Dutch Ruppersberger (D-Md.) tweeted that he was “safe in a conference room w/ approx 40 others” at the hospital.

He added that he’d “been told there is an active shooter.”

The congressman, whose Twitter account indicated at one point that he “does not believe this to be a drill,” tweeted after the all clear that “at no point was there any indication that this was a drill.”

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The medical center confirmed that the building was on lockdown.

It also said that an alert was sent out about an active shooter.

Naval Support Activity of Bethesda tweeted that security “has cleared the basement of Bldg. 19,” which officials previously said was locked down.

“No indication so far of an active shooter,” NSA Bethesda wrote.

Earlier on Tuesday, Rep. Dutch Ruppersberger (D-Md.) tweeted that he was “safe in a conference room w/ approx 40 others” at the hospital, “where we’ve been told there is an active shooter.”

Montgomery County police tweeted that they were called to the Walter Reed medical center at 2:23 p.m. “to assist with the report of a possible active shooter.”

The U.S. Navy also tweeted that officials were aware of the reports, and they have not confirmed an active shooter at the medical center.

Tuesday’s incident follows a string of repeated false alarm claims of active shooters.

These claims have occurred at numerous U.S. military bases across the country.

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Fox News’ Lucas Tomlinson, Jennifer Griffin and Jake Gibson contributed to this Fox News report, which is used by permission.

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