WATCH: Video of blaze that burned cars and ATVs; investigators seek the public's help

The Coeur d'Alene Fire Department is seeking information that could help them with their investigation of last Saturday's ground fire along Interstate 90 at Specialty Recreation and Marine.

The cause of the fire appears to be accidental and human caused, but the investigation is still open and active, according to Coeur d'Alene Fire Inspector/Investigator Craig Etherton.

Investigators are examining whether a vehicle with mechanical problems or towing something may have created sparks or other hot material which spread to the nearby grass. They are also exploring the possibility that the vehicle involved may have exited Interstate 90 at Northwest Boulevard around 11:20 a.m.

Anyone traveling in that area at that time who has any information that may help investigators is asked to contact Etherton at (208) 659-8986.

Etherton pointed out, in a press release, that a video released Friday shows several small flickers of light in the grassy area in the upper left section of the video.

"These flickers are almost simultaneous and quickly begin to spread once the wind gets ahold of them. Although we do not see any ignition sources coming from the vehicles passing by we are still reviewing the video and travel paths of the vehicles that pass by before the fire," Etherton wrote.

The initial fire investigation included assistance from fire investigators from the State Fire Marshal’s office and also the Idaho Department of Lands.

"We found multiple possible areas of origin and burn patterns showing the fire moving in multiple directions. As you can see in the video the wind shifts several times creating the effects that we saw at the scene," said Etherton.

This fire involved 29 all-terrain vehicles and personal watercrafts as well as four vehicles in the parking lot of the nearby Shilo Inn.