JOINT BASE ANDREWS, Md. (AP) — The Latest on reports of an active shooter at Joint Base Andrews outside Washington (all times local):

10:35 a.m.

A law enforcement official says no active shooter was found at a military post outside Washington.

The law enforcement official was not authorized to discuss the matter by name and spoke on condition of anonymity.

Joint Base Andrews had been placed on lockdown Thursday morning after an active shooter was reported. The base is home to Air Force One and is about 20 miles from Washington.

An active shooter exercise had also been planned at the base, but officials said the situation became “real world.”

The situation unfolded at a medical facility on the post. Joint Base Andrews issued a tweet telling all personnel at the base in Washington’s Maryland suburbs to shelter in place.

 

WASHINGTON (AP) — Homeland Security Secretary Jeh Johnson says there is an “unfolding situation” at Joint Base Andrews in Maryland but is providing no further details.

 

Due to the serious nature of this report, the base is reacting to ensure the safety of all personnel.

— Joint Base Andrews (@JBA_NAFW) June 30, 2016

 

The base tweeted Thursday it is on lockdown due to a report of an active shooter. Joint Base Andrews is home to Air Force One.

The tweet instructs all personnel at the base in Washington’s Maryland suburbs to shelter in place and says more information will be released as it comes.

Johnson is testifying before the Senate Judiciary Committee. He says he may have to take a break from the hearing as the situation at Andrews develops.

 

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JOINT BASE ANDREWS, Md. (AP) — Joint Base Andrews tweets that the base is on lockdown due to a report of an active shooter.

 

JBA is currently on lockdown due to a report of an active shooter. All personnel are directed to shelter in place. More info as it comes.

— Joint Base Andrews (@JBA_NAFW) June 30, 2016

The tweet sent Thursday morning instructs all personnel at the base in Washington’s Maryland suburbs to shelter in place and says more information will be released as it comes.

A second tweet from the base says the incident is ongoing at the Malcolm Grow Medical Facility and first responders are on the scene. It instructs everyone to continue to shelter in place, a precaution meant to keep people safe while remaining indoors.