Authorities in the United States have reviewed airport security footage as they continue to investigate how a woman sneaked on board a Delta Air Lines flight from New York to Paris without a ticket last Tuesday –– one of the busiest travel days of the year.

A fifty-something Russian woman who this week made headlines after sneaking onto a Paris-bound Delta flight from New York’s John F. Kennedy airport remains detained in the City of Love after causing a scene such that was she deplaned from her flight back to the United States.

The stowaway who boarded a flight in New York and made it all the way to Paris on Tuesday was removed from her return flight to the U.S. after causing a disturbance, a source said Sunday.