DUP MP Sammy Wilson said his party has adopted a wait-and-see approach over what the UK Government will do about the Northern Ireland Protocol.
The party is refusing to say if it will nominate a speaker to allow the functioning of the Stormont Assembly on Friday, repeating its call for action to be taken over the protocol.
Foreign Secretary Liz Truss is to hold crunch talks with the vice-president of the European Commission Maros Sefcovic on Thursday, as ministers consider whether to override parts of the post-Brexit deal on Northern Ireland.