Giant sinkhole opens up in St Albans
1 October 2015 Last updated at 11:45 BST
A giant sinkhole has opened up in a residential street in St Albans.
The 66ft (20m) diameter hole spreads across a front garden and driveway on Fontmell Close and is 33ft (10m) deep, forcing the evacuation of several families from their homes in the night.
Aerial footage captured the scale of the damage.