EU vows to use all available tools to ensure UK honours Brexit agreement

European Council President Charles Michel has warned of action against the UK (Francisco Seco/AP)

Top European Union officials have vowed to use all available measures to ensure the UK respects the terms of its Brexit agreement with the bloc as tensions rise over trade involving Northern Ireland.

“It is paramount to implement what we have decided. This is a question of rule of law,” European Council President Charles Michel said.