SIOUX FALLS, SD (KELO) -- Sioux Falls police say speed and alcohol may be factors in a crash that sent two people to the hospital early Sunday morning.
It happened just after 3 a.m. at Nelson Park, near 12th & Cliff.
A car crashed into a tree and a sign in the park.
Police say shortly before the crash, officers saw the car going northbound on Cliff at a high rate of speed.
The driver is in critical condition, a passenger is in stable condition.