Police are warning of a 'large bump' under the surface of the Mountain Road which has appeared overnight.
The constabulary says it's developed on the Hillbery section of the highway on the Ramsey-bound carriageway.
Officers says the Department of Infrastructure has been notified and is assessing the cause.
They add, as a result, the area may be subject to to works in the following hours which may disrupt travel in the area.
Wildlife surveys near proposed windfarm site this week
A team of ecologists will be surveying wildlife in the south of the Island near a planned windfarm next week.
Manx Care reprimanded over former worker's data access failings
Manx Care's been rapped for dragging its heels under data protection laws.
Government announces pay deal with unions
The government says it's reached a pay deal with two public sector unions.
Museum plans memorial for lost aviators
Ballasalla could be getting a monument to flyers and aviators who never made it home again.
Drone investigation suggests radio interference at work
A UK investigator says radio interference may have been behind a drone's strange behaviour in the south of the Island.
MHK questions minimum wage tax and NI payments
How much did minimum wage workers pay into government coffers last year?
Former Montpelier boss faces bankruptcy hearing
The multimillionaire head of a former trust company that went into liquidation could be declared bankrupt this summer.
Commissioners disappointed over end of police drop-ins
Commissioners in Onchan say they're sad to see the end of community police drop-in sessions for the village.
