A man has died following a crash on the M4 near Cardiff.
It happened at Junction 30 Cardiff Gate in the early hours, according to South Wales Police.
A second crash closed part of the motorway between Junction 24 Coldra and Junction 25 Caerleon, but as of 16:45 BST this had fully reopened.
Westbound vehicles had earlier been taken off the carriageway via the Junction 24 entry slip, according to traffic analysts Inrix.
Motorists had reported three-hour hold-ups, although both eastbound and westbound sections are now clear.
Police were called to Cardiff Gate at about 04:20 BST and the road reopened early afternoon.
Next of kin of the man who died have been informed and inquiries are on-going, said the force.
Following the second crash, people took to social media saying they had been stuck in traffic at Newport since 07:45 BST with “no water and in need of a bathroom”.
However, one motorist reported seeing a portable toilet being used by motorists trapped in the traffic jam after it was removed from the back of a lorry.