Police say the Sloc will be closed until at least 2pm as they search the area.
Officers say an incident happened shortly after midnight and the road is closed between the Round Table and Ballakillowey.
They say people shouldn't be alarmed and there is no risk to the public.
In a Facebook post, they've also asked people on social media not to speculate.
Is the Isle of Man 'wokest place in UK'? asks newspaper
The Daily Mail has been on the Island to investigate if we're the woke capital of the UK.
Police investigating after shotgun threat against minister
A man who suggested removing a minister “with a shotgun” will be investigated after she reported it to police.
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?
