MUNICH, Germany (AFP) — British Prime Minister Theresa May pleaded Saturday for an urgent deal with the European Union on post-Brexit security cooperation, warning that citizens’ lives were at stake.

In a speech at the Munich Security Conference, she acknowledged that no deal currently exists between the EU and a third country “that captures the full depth and breadth of our existing relationship”.

But she said there was no reason both sides could not come up with practical ways to create a “deep and special partnership” on security.

“We cannot delay discussions on this,” May said.

She also warned European partners not to put politics above cooperation against crime and terrorism.

“This cannot be a time when any of us allow competition between partners, rigid institutional restrictions or deep-seated ideology to inhibit our cooperation and jeopardise the security of our citizens,” May told the audience.

She cautioned that if there were no special deal on security by the time Britain leaves the bloc in March 2019, speedy extraditions under the European Arrest Warrant “would cease”.

And if the UK were no longer part of Europol, the EU’s law enforcement agency, information sharing would be hampered — undermining the fight against terrorism, organised crime and cyberattacks.

“This would damage us both and put all our citizens at greater risk,” May said, urging European leaders to show “some real creativity and ambition” in coming up with a bespoke UK-EU security pact.

“We must now move with urgency to put in place the treaty to protect all European citizens wherever they are in Europe,” May said.

Some experts have warned that cooperation on police and security matters could be limited by Britain’s refusal to fully accept the jurisdiction of the European Court of Justice (ECJ) after Brexit.

May appeared to respond to those concerns by saying the UK would “respect the remit” of the ECJ when working with EU agencies, in return for “respect for our unique status as a third country”.

“But as a country outside the European Union, we will have our own sovereign legal order, so the European Court of Justice will no longer have jurisdiction in the United Kingdom.”