A38 in both directions is blocked, and there are long delays due to an accident near B3271 Liskeard Road. One of the vehicles involved has gone off the road.
Police say the road could be blocked for some time.
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Mild tonight and dry and sunny tomorrow. Turning unsettled again later. The forecast with Luke Castiglione.
Around fifty thousand people have turned out on the Hoe in Plymouth over the weekend to support Armed Forces Day.
Luke Castiglione has the latest weather forecast. Cloud with rain this afternoon, becoming dry and sunny tomorrow