Moody's downgrades Barclays rating

British banking giant Barclays today saw its credit rating outlook downgraded to negative to reflect concerns over the impact of Bob Diamond's shock resignation.

Ratings agency Moody's said the departure of Mr Diamond, as well as chairman Marcus Agius and chief operating officer Jerry del Missier, in the wake of the rate-rigging scandal could lead to the break up of its powerhouse investment arm.