Detectives have arrested two males in connection with the robbery at a jewellers shop in King's Lynn in January.
Masked men armed with sledgehammers and a handgun smashed their way into the jewellers shop, on Norfolk Street, on the morning of January 31.
They pulled up in a silver Mercedes people carrier and used a smoke bomb to conceal themselves.
Two males then entered the store and caused damage to the shop and various items of value were taken before the vehicle then made off in the direction of Chapel Street.
A 20-year-old man and a 16-year-old youth were arrested overnight in the London area. They are awaiting questioning.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here