A New York City police officer is in the hospital Monday after an accident on the Southern State Parkway. Police say the accident occurred at around 10 p.m. Sunday near exit 21 in Uniondale.Authorities say one of the cars involved in the crash was going eastbound and apparently hit the guardrail. According to police, the car then flipped over and smashed into a car that was traveling in the opposite direction.Police say no one was seriously injured in the crash.