It's as a yellow weather warning for ice and wintry conditions remain in place
The Mountain Road is closed until 12pm on Monday (5 January).
It was shut at 7am this morning (4 January) between the Creg Ny Baa and Barrule Park.
The Department of Infrastructure says it's due to the weather conditions and a road traffic collision.
A yellow weather warning for snow and ice remains in place until tomorrow.
Meanwhile, police are advising motorists to exercise extreme care if they have to drive following a heavy hail shower, which is causing 'treacherous conditions'.
Officers warn that any treated roads will take time for the rock salt to take effect, and untreated roads will take longer to thaw.
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