Hailstorm wreaks havoc in Denver's southern metro area.

A storm system brought heavy rain, destructive hail, and a tornado touched down in Highlands Ranch in the southern part of the Denver metro area on Thursday. There is no official word on how much damage there is, but hailstones as big as ping pong balls were reported in Ken Caryl. On Wednesday night, hailstones at Red Rocks Amphitheatre injured nearly 100 concertgoers and seven people had to go to the hospital.