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.
BREAKING: DFDS wins Jersey ferry contract
DFDS will operate ferry services in Jersey waters from next year, the island's Economic Development Minister has announced.
£75K to support islanders with eating disorders and mental health issues
£75,520 from Channel Islands Lottery proceeds has been awarded to two Jersey charities supporting islanders and their families.
Disability awareness events to 'shine a light' on inclusion
Disability charities and campaigners in Jersey are using International Day of Persons with a disability to highlight how much remains to be done towards understanding and inclusivity.
