Prime Minister Theresa May has said she wants more co-operation with institutions such as Nato and the European Union on justice and security.

The Prime Minister said now was a time for more rather than less working together with bodies such as the United Nations, as she vowed to take a global outlook after Brexit.

Former shadow minister Barry Sheerman told MPs at Prime Minister's Questions there were "dark clouds looming on the horizon" for these three major organisations, which he said had helped keep the peace since the Second World War.

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In reply, Mrs May said: "I absolutely recognise the important issue that he has raised in this area.

"It is precisely as we move out of the European Union, the United Kingdom will be more outward looking.

"We will be looking globally, we want to ensure that we continue to play our part in the United Nations, that the United Nations itself is able to do the job that everybody wants it to do."

She added: "Obviously Nato has been the most important bulwark in terms of maintaining the safety and security across the European continent.

"That is why we are continuing to support Nato and indeed British troops are in Estonia, there's British forces in Poland, in Romania, continuing to show our commitment to Nato.

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"The thrust of my speech yesterday was that we want a strong, strategic partnership with the European Union, we want that access to the single market, that free trade agreement.

"But we also want to continue to work with them on justice and security matters, because now is not a time to co-operate less, it's a time to co-operate more."

The former home secretary is said to have a positive view of collaboration on security issues, and she decided to opt in to new Europol rules in November despite the Brexit vote.

Mr Sheerman asked the Prime Minister: "Is she aware there are dark clouds looming on the horizon, in terms of intolerance, racism across Europe, and the floundering and the flux of many of our great institutions that have kept peace and prosperity since the last World War.

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"I speak here of the United Nations, of Nato, and indeed the European Union.

"Are we fit for purpose in keeping this country safe and secure in that way?"