A plane from Ireland landed in Philadelphia on Wednesday after an "unsubstantiated" threat, according to Philadelphia police.
As a precaution, the plane was taken to a remote area of the airport so that Philadelphia police and Homeland Security could search passengers and luggage.
Authorities said the threat was called in to the Philadelphia Airport by an unknown male.
This is not an emergency landing. US Air Flight #777 was schedule to arrive at Philadelphia International today at 2:05 p.m. According to the airline's website, the flight came in from Shannon, Ireland and landed at 1:58 p.m.
All passengers are being escorted off the plane and loaded onto buses. They will be taken to a secure area and screened as well as interviewed. Luggage will be removed and screened as well. Bomb-sniffing dogs will then go through the plane, which is standard procedure.
All flights that are inbound right now to the airport are delayed. All outbound flights are taking off on schedule, according to Victoria Lupica, a spokeswoman for the airport.
When a threat like this occurs, Transportation Security Administration (TSA) workers alert the FBI and Homeland Security first. The FBI then calls in the Joint Terrorism Task Force, which is made up of multiple government agencies as well as local and state police, to help with the investigation.
The last time federal agents responded like this at Philly International Airport was in September when a Philadelphia man called in a fake report about explosives on a flight headed to Texas. The plane was turned around and brought back to Philadelphia. Kenneth Smith eventually pleaded guilty to charges including giving malicious, false information about an explosive. He had to write a letter of apology to every person on the plane.