Two RVs caught fire at the Charlie Lake R.V. and Leisure Trailer Park early Wednesday morning.
Charlie Lake and Fort St. John firefighters were called out at 6:41 a.m. along with police and paramedics, according to the regional district.
"The fire was so intense from the first RV that the radiant heat caused a second unit to catch fire due to its proximity," the regional district wrote in a news release.
"A third RV sustained minor damage to the skirting and discoloration to the siding due to radiant heat."
The fires were extinguished.