They were called to reports of a van on fire in Chequers Road at around 5.20pm yesterday evening.
The London Fire Brigade attended and helped put out the blaze.
Officers then discovered a body inside the vehicle.
“At this early stage, this death is being treated as unexplained,” a Metropolitan Police spokesperson said.
A post-mortem examination will take place in due course.
Officers remain at the scene.
Enquiries continue.
Tags: Essex, Havering, Noak Hill