British Prime Minister Boris Johnson is confident of striking a deal with the European Union ahead of the planned October 31 departure.
He said that leaving the EU without a deal was never the outcome he wanted but preparations for a no-deal are "very extensive".
"If we can make enough progress in the next few days, I intend to go to that crucial summit on October 17, and finalise an agreement that will protect the interests of business and citizens on both sides of the (English) Channel, and on both sides of the border in Ireland," Johnson wrote in the Daily Telegraph newspaper.
"I believe passionately that we can do it, and I believe that such an agreement is in the interests not just of the UK but also of our European friends."
Johnson heads to Luxembourg on Monday to meet outgoing European Commission President Jean-Claude Juncker.

Israel warns Lebanon of 'heavy price' as week's death toll nears 300
Israeli settler fatally shoots Palestinian in West Bank
Israel carries out rare airborne raid in Lebanon; 16 killed in strikes
US skips congressional review to approve arms sale to Israel
Flash floods in Nairobi kill 23, disrupt flights at major airport
Russia hits Ukraine with drones, missiles, kills at least 10 in Kharkiv
Partial resumption of air navigation in Qatar
Kuwait and Qatar thwart fresh wave of Iranian attacks
