LONDON (AP) – Authorities evacuated a terminal at London’s Heathrow Airport for about four hours Tuesday after a man dropped off a package near the Air Algeria and Lufthansa desks and ran away, airport staff members said.

One man was in custody in a West London police station, authorities said. Police would not discuss the contents of the package. About 2,000 people were ordered out of Terminal Two, which houses many European carriers, around 1 p.m., police said.

The package was found near the Air Algeria and Lufthansa desks, according to airport staff members, who spoke on condition of anonymity because they did not have authorization to speak with the media.