A woman involved in a collision on the M25 in Essex on Tuesday, March 29, has died.
Police are investigating a collision between an HGV and a Nissan Note which happened at 1.55am between junctions 26 and 27.
A 61-year-old man from Telford was arrested and is on bail pending further enquiries until June 27.
The 34-year-old woman from Leicestershire died at The Royal London Hospital on Saturday, April 2.
Officers continue to appeal for witnesses to contact Pc James Lee at the Serious Collision Investigation Unit on 101 or email firstname.lastname@example.org