Police are hunting an arsonist after firefighters spent sixteen hours battling a 150-tonne haystack fire overnight.

Firefighters were called to a farm near the junction of High Street and the A30 just after 8pm. 

Crews from Salisbury, Shaftesbury, Amesbury, and a water carrier from Wilton attended and were supported by an incident command vehicle from Devizes.

There were additional crews from Mere, Tisbury and Gillingham. 

The fire was out by 12.20pm today.

Anyone with information is asked to call PC Tom Wilson on 101 or Crimestoppers on 0800 555 111.