A car has flipped on St Saviour's Hill, closing the road.
Police are assessing two other vehicles at the scene of the incident.
It is unknown if there have been any major injuries.
Islanders are unable to use the road from the bottom of St Saviour's Hill, until further notice.
The incident is believed to have happened at around 2:00 pm on Friday (13 December).
St Clement residents evacuated from homes while potential gas leak investigated
Dozens of homes have been evacuated in Jersey while gas engineers investigate a potential leak.
DFDS timetable and final contract signing due next week
DFDS have confirmed that a ferry timetable for Jersey will be released by the end of next week (21 December)
Up the Toon! New direct flights to Newcastle from Channel Islands
Blue Islands has announced direct flights to the north-east of England from Jersey and Guernsey.
