Someone dealing with ants might have led to large Loveland grass fire

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

LOVELAND, Colo. -- A grass fire in Loveland caused some residents to evacuate on Thursday. It burned about 13 acres and it was human-caused, apparently because of ants, Loveland Fire Rescue said.

The fire broke out near County Road 29 and Coyote Run/West First Street, according to Loveland Fire Rescue.

"Evacuations have [taken] place for the homes that are potentially threatened by the grass fire," fire officials tweeted about 2:30 p.m.

A reporter for the Loveland Reporter-Herald captured video of the fire approaching a home.

Officials later clarified that there were no mandatory evacuations.

"[Some] residents self-evacuated, which was a good precaution," fire officials tweeted.

"South flank of the fire has been contained. Additional containment efforts are continuing along the fire perimeter," the fire department tweeted about 3 p.m.

At about 3:10 p.m., officials said the fire was fully contained.

No homes were damaged, officials said about 3:20 p.m. Residents were back in their homes by Thursday night. The Larimer County Sheriff's Office has taken over the investigation.