Delta flight 69 had 202 people on board, including 191 passengers and 11 crew. They were all deplaned along with their luggage.
Bomb-sniffing dogs were checking them out.
Port Authority Police and officials from U.S. Customs are on the scene, sources said.
On Sunday, Alitalia Flight 604 was temporarily evacuated and searched while on the tarmac at John F. Kennedy International Airport due to a threat. That flight had just returned from Milan.
Check back soon for more information on this developing story.
Source: http://newyork.cbslocal.com/2015/06/15/delta-bomb-threat-newark/