A toddler on Hawaii Island is in critical condition after a pickup truck rolled down a driveway and struck her, a tragic accident now under police investigation.

• A pickup truck slipped into neutral and rolled away on its own in Mountain View this morning.
• The truck hit a 3-year-old girl walking behind it, then struck a parked car and a tree before stopping.
• The child was flown to Kapi'olani Medical Center on Oahu for treatment.
• Hawaii Island police are investigating how the truck came to be left out of gear.

Outlook: Police are expected to release more details as the investigation continues.