A motorist who died in the second fatal head-on crash on the M4 in less than two weeks has been named.
Jeffery Green was known as a "gentle giant", say his family
Jeffery Green, 64, from Dyfatty in Swansea, was travelling on the eastbound carriageway at Aberavon when the crash happened on Saturday.
Three people were also injured when a Ford Escort, believed to be going in the wrong direction on the M4, crashed head-on with Mr Green's Volvo.
A man has been released on bail after questioning about the crash.
Saturday's crash happened at around 1650 BST between junctions 40 and 41.
On 17 September five people died when a car went the wrong way on the same motorway, 40 miles away in Newport.
The crash happened on Saturday afternoon
The Newport crash involved a car which had earlier been pursued by police officers. South Wales Police said there was no police involvement before Saturday's collision.
The M4 was closed in both directions for a number of hours while the casualties were taken to hospital in Swansea by both air and road ambulances.
On Monday, Mr Green's family paid tribute to him saying he was "a gentle giant to all that knew him." and was also a devoted husband to his wife Barbra.
"He was a family man to all his step children and step grandchildren and he was loved by all his friends," the statement said.
The 17 September crash involved a Ford Mondeo, which drove the wrong way on to the M4 at Newport after being followed by Gwent Police. Police stopped pursuing the Mondeo when it went onto the motorway.
It hit a Volvo 940, killing Bridget Stafford, 70, and her husband James, 69, of Thornton Heath, Surrey.
Three Newport men in the Mondeo also died: Lee Maggs, 26, Christopher Beresford, 18, and Sam Case, 19. A fourth man survived.