This morning at 4:54am, officers from District B-2 responded to a radio call for a motor vehicle accident at 244 Blue Hill Avenue in Roxbury. On arrival, officers observed a blue vehicle that was involved in a single car accident with multiple injuries.Three passengers and the driver were taken to local area hospitals suffering from serious injuries. Two other passengers were pronounced at the scene and removed by the Office of the Chief Medical Examiner. Boston Police continue to actively investigate the facts and circumstances surrounding this incident. At this time investigator believe speed may have been a factor.