The British Airways terminal at New York’s Kennedy Airport was evacuated for about two hours due to a security incident.

Port Authority spokesman Steve Coleman says a person walked away when told to step aside for a secondary security check around 5:20 a.m. Friday.

Coleman says that according to protocol, airport workers had to “clean out the entire terminal and rescreen everybody.”

Passengers were allowed to board their flights around 7:40 a.m. But there were some residual delays.