Firefighters spent more than four hours battling a fire at a building in King's Lynn overnight. 

Crews were called to the blaze, in a commercial building in Poplar Avenue, at 11.27pm on Wednesday evening. 

Hose reel jets were used to extinguish the flames, while firefighters also used a thermal imaging camera to check for hotspots. 

A stop time was called at 3.35am on Thursday morning.

Appliances from King's Lynn, Terrington and Sandringham were in attendance.