These images show firefighters tackling a blaze on a farm in Colorado that was decorated with numerous Halloween-themed installations in an incident that is being treated as “suspicious”.

The incident took place in the town of Parker, which is located in Douglas County in Colorado in the western United States.

It took six hours and 70 people to put the fire out, according to local media outlet the Highlands Ranch Herald, who quoted firefighters as saying that investigators are “seeking to persons of interest who were at the scene”.

The South Metro Denver Fire Department posted regular updates about the blaze on Twitter along with footage and on Monday afternoon (25th October) they issued a statement quoted by the Highlands Ranch Herald saying that surveillance footage showed “two people arriving at the property and walking inside. A short time later flames are visible in the video.”

The fire department also tweeted that “the fire destroyed a haunted house and is now contained, but will continue to burn for an extended period of time. Firefighters remain on scene extinguishing flames and front loader tractors have been requested to help.”

In a previous tweet, they had said that the fire involved large bales of hay and caused a glow that was visible in the distance as “large volumes of smoke” drifted north.