Sussex Police said the van crashed at the junction between Offington Drive and Offington Avenue at 1.50am this morning (June 13).
A male occupant was pronounced dead at the scene and there were no other vehicles involved.
Four other occupants of the van were arrested.
Police are in the process of notifying his relatives.
The area was cordoned off by police until just before 10am this morning.
Sussex Police are asking for any witnesses to call 101 quoting operation Tolworth.
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