US rescues ailing Citigroup bank

The US government has announced a rescue plan for troubled banking giant Citigroup after its shares plunged by more than 60% last week.

The US Treasury is set to invest $20bn (£13.4bn) in return for preferred shares in Citigroup.

The Treasury and the Federal Deposit Insurance Corp will also guarantee up to $306bn (£205bn) of risky loans and securities on Citigroup's books.