Police are searching for a driver who allegedly hit a pedestrian in Adelaide's CBD.
The search comes as Major Crash officers investigate how a toddler was struck and killed by a four-wheel-drive south of the city, in a separate incident.
Police are looking for the driver of a blue Holden Commodore sedan that allegedly struck a pedestrian near the Adelaide Railway Station on North Terrace in the city at about 4:20am and drove off.
The 21-year-old man was taken to the Royal Adelaide Hospital with non-life threatening injuries.
Officers believe the driver and his car were involved in an assault at Morphett Street and are investigating possible links between the two cases.
Meanwhile, police are investigating the circumstances of the death of a 17-month-old girl who was struck by her family's car at a Mount Jagged property on the Fleurieu Peninsula about 3:45pm yesterday.
She died at the scene despite efforts from paramedics.
Major Crash officers are investigating the crash.
