Medics from Wiltshire Air Ambulance are attending a crash in Trowbridge.
The road traffic collision happened on the Leap Gate Roundabout (A361) at around 11am.
The road is closed in all directions while 999 crews attend to a casualty, who is being given CPR.
Two ambulances, an air ambulance rapid response car and four police vehicles are at the incident.
This is a breaking news story – standby for the latest updates. Click here to refresh this page or check back shortly for the most up-to-date version.
Do you have information, photos or videos? Call, text or WhatsApp us on 07794 802 940 or email [email protected]. We won’t tell anyone you’ve been in touch.