Lafayette Police are looking for several suspects involved in an armed robbery. The crime happened Sunday in the parking lot of the Regional Medical Center of Acadiana, off of Ambassador Caffery. Police say a 66 year old woman was walking to her vehicle when a small, yellow, two door truck drove by and asked if she needed help. The driver then got out, pulled out a gun and demanded the woman's purse. The suspect is described as a black male. Two other black females were also inside the truck at the time. Anyone with information should call Lafayette Police or Crimestoppers at 232- tips.