PORTSMOUTH, Va. (WAVY) — Two unrelated security incidents Thursday morning at Norfolk Naval Shipyard in Portsmouth led to the “false report of an active threat situation,” the shipyard said.

The reported threat, which the shipyard initially relayed as a potential active shooter, led to the shipyard going into lockdown around 11:55 a.m. The all clear was eventually given around 12:15 p.m.

10 On Your Side’s Andy Fox confirmed through shipyard officials that the shelter in place was first issued after a report of a person walking into the building with a gun. This was later proven to be untrue.

Base officials, however, did say a gun was discovered in a private contractor’s vehicle earlier in the day, around 8:30 a.m. Officials say both the contractor and vehicle were authorized to be on the shipyard for ongoing work, but they were not allowed to bring a weapon onto the property.

“The weapon was secured by U.S. Navy law enforcement officials and the subject contractor was detained,” the shipyard said in a statement. “NNSY takes employee safety very seriously, and a thorough investigation is underway to determine how the individual was able to transport a weapon onto federal property.”

The shipyard said around the same time the gun was found, another employee was reported to have made threats against the shipyard and their coworkers. The employee’s supervisor immediately reported the threat to base police.

“Base police and appropriate law enforcement officials have since confirmed the subject employee is no longer present at the shipyard and their installation access has been revoked,” the shipyard said.

The shipyard confirmed no injuries were reported and “will thoroughly investigate these incidents and take all appropriate actions to ensure the continued safety and well-being of our employees and our surrounding community.”

What happened?

The Norfolk Naval Shipyard in Portsmouth is down the road from the WAVY-TV media complex, and you could hear the shelter in place siren in the distance.

At Norfolk Naval Shipyard’s Gate 10, WAVY found security cars, sirens, backed up cars through the front gate turnstile, and you could see guards turning car around inside the gate.

Outside the gate, there was a “no comment” from someone who appeared to be a supervisor.

“I cannot make in comment at this time, sorry,” the person said.

The shipyard sent out a text saying there was a “lockdown until further notice active threat reported at building 1505.”

10 On Your Side stopped a man named Dave leaving the yard and asked what happened?

“I’m not sure,” he said. “They just put us all in lockdown and the message basically just shelter in place.”

Said Jay Jones: “I heard there was false information that someone had a gun going into a building.”

The shipyard told us the report of someone taking a gun into building 1505 was false, but also said it is true an employee was reported to have made threats against the shipyard and co-workers.

“The person was removed from the shipyard, and his access revoked,” the statement read.

And there were other issues in the yard.

“Someone told me that there’s some report of a gun in a person’s car,” Jones said.

That turned out to be true, but was not the reason for the lockdown. Then, while we were on air, we got the all clear.

“Attention, all clear. Resume normal operations. Repeat all clear resume normal operations.”

Said Jones: ““I didn’t hear the shelter in place. The building I work in, Building 60, doesn’t echo, but I can tell you when I came out, and I heard the stand down go back to normal, then I knew it was over.”

What does Jones want to see to make it better?

“A speaker system inside Building 60 would suffice,” he said. “If the door were up on a summer day, then we would have heard it and would have closed down the door and locked everything up, as protocol tells us.”