Image shared by Garff Commissioners
A Post Office van is currently blocking the road on Laxey Hill.
An image shared online by Garff Commissioners shows the vehicle lying on its side across the carriageway.
The local authority is asking motorists to avoid the area.
Police have been contacted for an update on the situation.
John Wannenburgh: 'Commitment, compassion and an unwavering sense of duty'
Tributes following the unexpected death of Douglas North MHK
Manx Utilities 'deeply saddened' by death of chairman
Wannenburgh praised for 'exceptional' leadership
"Tynwald will be a less colourful place without John" says president
Watterson describes Wannenburgh as 'devoted' to constituents
Douglas North MHK pays tribute to 'amazing friend'
Wannenburgh had 'biggest heart of anyone I've ever met' says Ashford