Emergency services are at the scene of an accident in Newhaven.
Traffic reports say the accident happened next to the Ouse Estuary Nature Reserve.
The A259 is reportedly blocked both ways due to the accident, between Mill Drove (Bishopstone) and B2109 Avis Road (Newhaven).
Slow traffic has been reported.
Read our updated story: Person ‘medically trapped’ after accident near nature reserve in Newhaven