Terminal C at Newark Liberty International Airport in New Jersey was evacuated Sunday evening, but few details were available about why. Passengers took to Twitter to share photos and updates as security workers stopped travelers from returning to the terminal until further notice.

Speaking to reporters, police said a man entered a secure hallway before being stopped by U.S. Customs and Border Protection agents. The terminal has been evacuated until canines can finish conducting a security sweep.







The airport -- one of the three major airports serving the New York City metro area -- was previously at the center of an Ebola scare in October 2014, when a health worker was quarantined after coming into contact with the virus in the African nation of Sierra Leone. Another airline passenger was held under evaluation during the same period, after officials feared a passenger from Liberia may have been infected.