The crash happened on the Glenshane Road last Wednesday morning.
There's a fresh appeal for information following a fatal collision near Dungiven.
64 year-old Loreto Douglas died in the crash on the Glenshane Road just after 9 last Wednesday morning.
She was driving a Volkswagon car, which collided with a Ford Transit van and a Citroen Dispatch van.
The victim was airlifted to hospital but she later passed away from her injuries.
Three men and a woman were also taken to hospital for treatment.
Appeal to European Court being considered after ruling over Troubles disclosures
Executive agrees to set aside £119m for PSNI data breach payouts
Concern voiced as next phase of Omagh Bombing Inquiry hearings delayed
Four fatal house fires in three days in Northern Ireland ‘deeply concerning’
‘Much more to do’ to protect children in NI from sexual exploitation – report