A subway train was leaving the Fulton Street station in lower Manhattan on Monday when someone shouted, "Rat on the train!"
Jinais Ponnampadikkal Kader (jih-NYE'-ees poh-nahm-PAH'-dihk-kahl KAH'-dur) started recording the ensuing panic on his cellphone.
His video shows people screaming as a large rat runs from side to side. It ends when the train reaches the High Street station in Brooklyn.
The 28-year-old Kader is a software developer who lives in Harrison, N.J.
More than 700,000 people had clicked on the YouTube video by Wednesday afternoon.