GREENWICH - Police say they are searching for three suspects in a Greenwich home invasion. Investigators say the incident occurred around noon Friday on Dandy Drive. According to police, three men in their 20s tied up the homeowners at knifepoint while they robbed the home. Police say the home was targeted and that the victims suffered minor injuries.Neighbors reportedly called 911 after witnessing the suspects run from the home. Officials say the suspects were last seen on nearby Valley Road. Police say several people from the community have called in with tips and that they are pursuing a few leads. Investigators have not yet said what the motive might be or what was taken.