A City trader has been jailed for two-and-a-half years after making £3m-worth of unauthorised trades.

Jonathan Bunn's deals brought Lewis Charles Securities "to its knees" and led to 12 people being made redundant and 20% pay cuts for staff.

The 31-year-old was jailed at Southwark Crown Court after admitting to false accounting between 22 and 24 July 2009.

Bunn, of Weybridge, Surrey, was banned from working in the finance industry by the Financial Services Authority.