A yellow weather warning for snow and sleet remains in place until 9am
The Mountain Road is closed due to heavy snow.
The police say it's due to extremely poor conditions which could pose a 'serious road safety issue'.
It's expected to be shut until 4.30pm.
The Department of Infrastructure will review the necessity for the closure throughout the day.
Meanwhile, a yellow weather warning for snow and sleet remains in place until 9am.
Search launched after emergency beacon signal activated
Crews responding to Personal Locator Beacon activation within five-mile radius of Snaefell
Fuel costs 'likely to rise' amid Middle East conflict
Chief minister issues update after extraordinary Economy and National Strategy Board meeting
Farmer urges dog walkers to be mindful as lambing season gets underway
Stress can lead to devastating consequences for ewes
Ticket pre-sale event for 'swan song' DC/AC gig
Event at Sea Terminal ahead of 'Final Stand' TT concert