BALTIMORE, Md. (DC News Now) — Baltimore/Washington International Thurgood Marshall Airport (BWI) said Wednesday afternoon that the terminal roadway was briefly shut down for a police investigation.

In a post on the platform X, formerly known as Twitter, at 3:10 p.m., BWI said that the roadway was temporarily shut down for a law enforcement investigation. It later clarified that this investigation was into a vehicle on the lower roadway near the terminal.

Any traffic approaching the airport was held, and BWI asked that anyone in the terminal stay in place.

In an update at 4:15 p.m., BWI said that law enforcement had cleared the vehicle and that the roads had reopened.

The Maryland Transportation Authority Police said that one person was in custody. Officers had investigated as a precautionary measure based on “statements” that the person had made.

BWI also asked Southwest passengers to get their bags from Bag Belts #1-5. Passengers were not allowed to leave to the lower level — everyone had to go to the upper level to leave the airport.

As of 4:30 p.m., the taxi service was operating near Upper Level Door 5.