Crews were called to La Corbière on Sunday afternoon.
All emergency services were understood to be dealing with the incident close to the lighthouse.
It is believed a car went over the cliff edge and landed on its roof.
States of Jersey Police said the road remained open but asked people to avoid the area.
Occupation diary entries brought to life for Liberation 80
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Brittany Ferries takes legal action over Jersey ferries contract decision
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DFDS releases provisional summer sailings timetable for Jersey
The Danish ferry company chosen as Jersey's new operator has shared provisional sailing times for July and August 2025.
