The DUP leader has put the UK Government and EU on notice over the Northern Ireland protocol.
Sir Jeffrey Donaldson told a news conference in Belfast that his party will walk out of Stormont if changes to the protocol are not delivered within weeks.
However Sir Jeffrey did announce his party's immediate withdrawal from north/south political structures.
SUBSCRIBE to our YouTube channel for more videos: www.youtube.com/skynews
Follow us on Twitter: twitter.com/skynews
Like us on Facebook: www.facebook.com/skynews
Follow us on Instagram: www.instagram.com/skynews
For more content go to news.sky.com and download our apps:
Sky News videos are now available in Spanish here/Los video de Sky News están disponibles en español aquí www.youtube.com/channel/skynewsespanol