European Union leaders on Thursday placed the onus on Britain to unblock stalled post-Brexit trade talks, urging London to “make the necessary moves” to answer their concerns.

In a written conclusion adopted at their summit, the 27 leaders also urged the EU and its member states to step up preparations to protect their interests in the event Britain leaves the single market without a deal.

British Prime Minister Boris Johnson had set the first day of the EU summit on Thursday as the deadline to get a trade and security deal to replace its membership that expired on January 31. A transition period is set to end on January 1, 2021 forcing negotiators to work fast if any deal still is to get legislative approval and legal vetting in the narrow time frame.