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.
Wasps going on in Pulrose
People are being warned to steer clear of a giant swarm of wasps in Douglas.
Port Erin Tesco opens on Thursday
A supermarket in Port Erin will reopen under its new owners this week.
Deal Or No Deal presenter on the Island
Former radio and TV presenter Noel Edmonds has been spotted on the Island.
Commissioners ‘lamppost gate’ complaint maladministration
The Tynwald Commissioner for Administration has ruled Ramsey Commissioners taking too long to reply to a complaint as ‘maladministration’.
Mobile library adds Laxey to its route map
A new stop has been added to a mobile library's bus route.
Cosmo fundraiser hits £1,000 target
A fundraiser in memory of one of the Island's most famous cats has hit its target.
Burst water main closes street
A burst water main has shut a street in Peel today.
Local artist's works featured on new stamp set
Isle of Man Post Office will issue six stamps based on a Manx artist's work.
