A third ratings agency has downgraded the UK's credit rating, in the wake of Britain's Brexit vote.

Fitch has blamed the fallout from the European Union referendum, as it lowered the UK's financial prospects by a notch.

S&P dropped its assessment too - meaning the British government could find it harder to borrow money.

The markets have responded negatively to the Britain's exit.

Irish shares were among the worst hit in trading yesterday.

The ISEQ index of Irish shares was down by almost 10 per cent down at close of business.

Financial analyst Louise Cooper isn't surprised: