The man killed when his van crashed on the M11 in Essex and was found to have a block of concrete smashed through the windscreen has been named.
He was 61-year-old Andrew Brett of Alexandra Road in Sible Hedingham.
Mr Brett crashed into the central reservation of the M11 near Bishop's Stortford before veering into a tree on the side of the road on Wednesday afternoon.
The incident is being treated as suspicious because a brick-sized piece of concrete had hit the windscreen but police ruled out the block being thrown from a bridge or the roadside.
“We continue to keep an open mind as to how it came to strike the windscreen and ended up inside the van, and whether this was the result of a deliberate act or accidental. “It is vital we speak to drivers who were travelling on the M11 Birchanger area, either north or southbound, at around 4.50pm.
A lump of concrete that hit a van driver's windscreen before he crashed and died was not thrown from a motorway bridge, police have said.
Essex police are treating the death of driver who crashed on the M11 as suspicious after a concrete block crashed through his windscreen.
Police say they're treating the death of a driver on the M11 as suspicious after an 'object' hit his windscreen.