A yellow weather warning runs until later this morning.
The Met Office says icy patches may have formed in subzero temperatures overnight.
Most at risk are roads on higher ground as well as in sheltered low-lying spots.
The warning runs until 11am.
Yellow weather warning for ice
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Warning over possible ferry disruption tonight
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Department told to provide new FOI response to Visit Isle of Man query
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Laxey move announced for well-known jewellers
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Your plaice or mine? None next year, say scientists!
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Creamery director calls time on a grate career
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