It remains unclear how the person managed to bypass security at JFK Airport and board the Delta Airlines flight to Paris.

A stowaway evaded multiple airport security checkpoints and flew aboard a Delta Airlines flight from New York to Paris Tuesday evening, authorities said – a shocking breach that raised serious alarm over airport security.

A woman was taken into custody after the stowaway flew aboard a Delta Air Lines flight from New York's JFK International Airport to Paris Charles de Gaulle Airport, the airline said.