LONDON (AP) — Britain's former Brexit secretary is urging members of Prime Minister Theresa May's cabinet to rebel against her proposed deal with the European Union over the terms of Britain's departure from the bloc.

David Davis wrote in the Sunday Times that May's plans for some continued ties with the EU under her Chequers plan is "completely unacceptable" and must be stopped. The fellow Conservative party member said the time has come for ministers "to exert their collective authority" to shoot down May's plan.

May also faces obstacles from the Democratic Unionist Party in Northern Ireland, which has played a crucial role in propping up her minority government in Parliament.

DUP leader Arlene Foster remains opposed to any Brexit plan that would require any checks on goods traveling between Northern Ireland and Britain.