The Brexit divorce deal agreed last year must fully enter force and is a top priority for the bloc as it looks to forge a new relationship with Britain, the EU's chief Brexit negotiator said on Thursday.
"Full & effective implementation of Withdrawal Agreement will always be an absolute priority for (the EU)," Michel Barnier wrote on Twitter.
"It is the result of long EU-UK negotiations & the only way to protect Good Friday (Belfast) Agreement, guaranteeing peace and stability on island of Ireland."