The UK Parliament has failed to endorse an alternative plan on Brexit after Prime Minister Theresa May offered to stand down from the top job if her deal was delivered.

Key points: MPs had eight options to vote on, including revoking Article 50

MPs had eight options to vote on, including revoking Article 50 The votes were done privately

The votes were done privately The strongest support was for a second referendum

Eight separate alternatives on the UK's withdrawal from the European Union were rejected by MPs in the House of Commons.

Politicians voted on options that included leaving the European Union without a deal, staying in the bloc's customs union and single market, putting any EU divorce deal to a public referendum, and cancelling Brexit if the prospect of a no-deal departure got close.

Any of the options that gained the support of more than half of MPs would have been debated next Monday as an alternative to Mrs May's deal, which has been rejected twice.

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Watch Duration: 2 minutes 23 seconds 2 m 23 s House of Commons Speaker John Bercow announces the results of votes on alternative Brexit proposals.

The vote results Leave the EU without a deal on April 12: 160-400

Leave the EU without a deal on April 12: Leave EU but still in common market 2.0/Norway plus: 188-283

Leave EU but still in common market 2.0/Norway plus: Leave with Norway option (EFTA) but no customs union: 65-377

Leave with Norway option (EFTA) but no customs union: Leave the EU with a customs union: 264-272

Leave the EU with a customs union: Labour's Brexit plan — customs union with alignment on future rights and regulations with the EU: 237-307

Labour's Brexit plan — customs union with alignment on future rights and regulations with the EU: Revoke Article 50/cancel Brexit in event of a no-deal: 184-293

Revoke Article 50/cancel Brexit in event of a no-deal: Any withdrawal agreement must be put to a second referendum: 268-295

Any withdrawal agreement must be put to a second referendum: Malthouse Plan B, which would seek a standstill agreement with the EU while trade deals are negotiated: 139-422

MPs plan to narrow the list of options down and hold more votes on Monday — Britain has until April 12 to find a new plan, or crash out of the EU without a deal.

But Mrs May's offer to resign to push through her deal may not be enough, with Northern Ireland's Democratic Unionist Party (DUP) — crucial to getting the vote through — issuing a statement saying it would reject it again.

She earlier told a meeting of Conservative MPs she would quit "before the second phase of negotiations", but put no timeline on a departure date.

"I am prepared to leave this job earlier than I intended in order to do what is right for our country and our party," she said.

"I ask everyone in this room to back the deal so we can complete our historic duty — to deliver on the decision of the British people and leave the European Union with a smooth and orderly exit."

Mrs May said she "had heard very clearly the mood of the parliamentary party" and she knew there was "a desire for a new approach and new leadership … and I won't stand in the way of that".

Meanwhile, she has been trying to woo conservative backbenchers in a bid to garner more support for her withdrawal agreement.

Speaker John Bercow poured cold water on her attempts to get it before Parliament by the end of the week, saying it would need to be significantly different from the previous deal.

But that has not stopped Conservative Party whips from telling MPs to keep their diaries open for Friday.

One influential pro-Brexit backbencher, Jacob Rees-Mogg, appears to have backflipped on his fierce opposition to the deal, saying he would support it providing the DUP did, and that "half a loaf is better than no bread".

"I have come to this view because the numbers in Parliament make it clear that all the other potential outcomes are worse and an awkward reality needs to be faced," he wrote in a comment piece for the UK's Daily Mail newspaper.