Banks were warned on Wednesday to take security precautions to protect their staff after vandals attacked the Edinburgh home of Sir Fred Goodwin, former chief executive of Royal Bank of ­Scotland.

Guarding the gate: police on duty at the Edinburgh house of the former Royal Bank of Scotland chief where vandals struck

A group claiming responsibility for the attack later e-mailed the Edinburgh Evening News warning of further action. One of the messages read: “We are angry that rich people, like him, are paying themselves a huge amount of money, and living in luxury, while ordinary people are made unemployed, destitute and homeless. This is a crime. Bank bosses should be jailed. This is just the beginning.”