Labour leader Ed Miliband recorded a video to explain why he will be voting to legalise gay marriage. He said:
"I don't think the person you love should determine the rights you have, that is why I will be voting for equal marriage, along with the rest of the shadow cabinet"
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David Cameron has addressed Parliament for the first time since Britain voted to leave the European Union.
The FTSE 100 Index fell to 2.55% to 5,982.2 at the closing bell as the financial markets continued to experience Brexit volatility.
Prime Minister David Cameron has called his Polish counterpart, Beata Szydło, to express concern over reported attacks on Polish migrants.