Cumberland County firefighters and deputies responded Friday to a home on the 1,500 block of Russell Ridge Road after a motorist passing by reported three vehicles (a 1992 Toyota Camry, a 1999 Pontiac Grand Am and a 1999 Chrysler Town and Country) ablaze. No one was at the dwelling at the time and no witnesses were available. The report noted a fireman saw 4 or 5 individuals standing in the road when first responders arrived then they left. The matter is under investigation.