Footage: Michael Gore
Police are investigating after a robbery at a jewellers on Princess Victoria Street in Clifton, Bristol at approximately 12.50pm today.
Four offenders arrived at the scene on motorbikes and used weapons to smash the store windows.
The owner of the store, Stephen Grey-Harris, told ITV News that he believes that the men got away with jewellery worth "in excess of one million pounds."
Jonty Messer spoke to him a little earlier: