The cause of a Madisonville fire remained unknown late Sunday evening.
Fire officials say the call came in around 5 p.m. Sunday regarding a fire in the 500 block of Martin Luther King Street.
Officials say a mattress somehow caught on fire and the blaze spread throughout the trailer.
Two children spotted the flames and told their parents and two siblings to get out.
No one was injured, but the trailer was completely destroyed.
Red Cross is assisting the family.