(CNN) - The United Kingdom and the European Union have agreed to a new Brexit deal after months of tense negotiations, according to Prime Minister Boris Johnson and European Commission President Jean-Claude Juncker.
Former Prime Minister Theresa May also secured a deal with the EU, but failed to pass it through the House of Commons on three occasions.
Johnson, announcing the new deal in a tweet, said it "takes back control" and urged Parliament "to get Brexit done on Saturday" when lawmakers are next due to meet.
"From what we know, it seems the Prime Minister has negotiated an even worse deal than Theresa May's, which was overwhelmingly rejected," Corbyn said.
If Johnson can't get parliamentary support for his plan by Saturday, he is legally obliged to write to the EU requesting a Brexit extension until January 31, 2020.