Two fire crews attended the Joseph Morton (Wetherspoon) to tackle a fire caused by a faulty underground electricity supply.
Lincolnshire Fire and Rescue were called to the pub in Kidgate at 6.42pm yesterday evening (Sunday) and spent almost two hours at the scene.
A spokesman confirmed that both crews from Louth were in attendance until shortly after 8.30pm.
The spokesman added: “It appears (the fire) was caused by a faulty underground electricity supply.”
No further information was available at the time of publication.