Bank chief to leave after $2bn loss

America's biggest bank is expected to accept the resignation of one of the highest-ranking women on Wall Street after it lost two billion dollars (£1.2 billion) in a trading blunder, a person familiar with the matter said.

JPMorgan Chase will accept the resignation of Ina Drew, its chief investment officer, and at least two other executives will be held accountable for the mistake, the source said.