PARIS - Armed robbers attacked a Saudi Arabian prince's convoy in Paris on Sunday night, allegedly seizing around 250,000 euros ($335,000) in cash and sensitive documents. The convoy had been heading for Le Bourget airport north of the city. Witnesses told police a group of heavily armed men attacked the last car in the convoy near Porte de la Chapelle at around 9 p.m. local time (3 p.m. ET) and then drove off in it. Rocco Contento, a representative of police union SGP, told BFMTV the attackers appeared to be "people who knew the itinerary" of the cars.