The A377 is blocked following an incident near the Tesco superstore on the outskirts of Crediton. The accident is affecting traffic travelling between Crediton and Exeter.
BBC Travel South West is advising drivers to avoid the area if possible, saying on Twitter that traffic is at a “standstill”.
One driver, Hannah Sparks, also took to social media to warn that Newton St Cyres is very congested as a consequence. “Everyone trying to divert – so avoid”, she said on Twitter.
The incident was first reported by traffic monitoring Inrix at 5.15pm.
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