A casualty has been seriously injured in a crash on the B4019 near Highworth.
Emergency services were called to the scene, where it’s understood a motorcyclist has suffered significant injuries, at around 11.30am this morning.
Wiltshire Air Ambulance and Great Western Air Ambulance both landed at the incident so the charities’ critical care medics can assist local ambulance crews.
The road, between the A419 Blunsdon by-pass and Highworth, will remain closed for several hours.
Wiltshire Police is expected to carry out a lengthy collision investigation which is likely to continue into the late afternoon.
A spokesperson for the force said: “We are urging drivers to seek alternative routes following the closure of the B4019 between Highworth and the A419 following reports of a serious road traffic collision.
“The road is likely to be closed for some hours. Thank you for your patience.”