It should be open again by 2.30pm
The entire Mountain Road is currently closed, from Ramsey to the Creg-Ny-Baa.
The emergency closure is to allow for the road to be swept following a diesel spillage along its entire length.
The Department of Infrastructure says it should be open again by 2.30pm.
Emergency access will be maintained throughout the period of the closure.
Cathedral Concert this weekend
Blue Train Big Band will play its first event of the year
Two comets visible in the sky this month
But only one can be seen from the Isle of Man
Evening sailing to Heysham cancelled
It is due to forecast bad weather
Witness appeal following 'incident' in Douglas
Officers share description of three males
Snowfall later this week not expected to affect Isle of Man
Ronaldsway Met Office says flurries forecast in the UK won't be seen here