Passengers from the bus were seen from Newscopter 7 standing on the side of the road.
The bus was an MTA Express Bus to Staten Island. It happened just after 5 p.m.
Nobody on the bus was injured.
Just after 6 p.m. all lanes reopened on 495.
There was also a delay heading out of New York City.
The truck caught fire as it attempted to exit to the Vince Lombardi rest area and has resulted in all lanes of the western spur being blocked.
Traffic was back to normal on Thursday night.
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