A section of the A45 was closed as firefighters tackled a field fire near to Rushden.
Police closed the road from Wilby Way at Wellingborough to the Waitrose roundabout at Rushden while emergency services were at the scene.
Mike Campbell captured this picture of smoke coming from the blaze this afternoon (Tuesday).
However, the Highways Agency said that the road had re-opened by 5.30pm.
If you have any pictures of the fire, send them to email@example.com, tweet us via @NTelegraph or post them on our Northants Telegraph page on Facebook.