"Orderly Brexit will remain our absolute priority in the coming weeks. Nevertheless, at this time, no scenario can be excluded. And that is particularly true for a scenario that we have always wanted to avoid, the no-deal one", Barnier said at a session of the European Parliament.
The deal was defeated in the UK parliament on Tuesday by 432 votes to 202.
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The deal was supposed to have been voted on by the parliament in December 2018, but the crucial procedure was postponed by Prime Minister Theresa May amid high risks that the long-sought agreement would not stand amid growing concerns over the Irish backstop, a fallback plan to avoid a hard border between the Republic of Ireland and Northern Ireland.