The A38 in Cornwall is closed in both directions between Bodmin and Liskeard.
A lorry and two other vehicles involved between Two Waters Foot and Old Road. Police are at the scene.
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It'll be a frosty start to Tuesday morning with showers and hail later, but some sunny spells.
It's going to be a frosty start to Tuesday morning with showers and hail expected later in the day.
Bob Crampton is forecasting a bitterly cold spell on Tuesday - so don't put those wooly jumpers away just yet!