VIDEO: Officials launched an investigation into suspicious fires on Cape Cod late Sunday night. Firefighters responding to a fire on Hiramar Road in Hyannis around 11:30 p.m. found flames coming from a vacant home, according to the Hyannis Fire Department. A short time prior, crews had put out a car fire just down the street. Fire officials say both fires are being investigated as suspicious. There were no reported injuries. No additional information has been released.