Story highlights Parliament website crashes due to traffic for petition

"Leave" voters take to social media to reveal their regrets

London (CNN) From Brexit to #Regrexit -- an online petition demanding a second referendum on Britain's decision to leave the EU has passed 3 million signatures.

By Sunday morning, 3,048,000 people had signed the petition on the official UK Parliament website. That number takes it well over the 100,000-signature threshold needed to force a debate on the issue by members of Parliament.

A rush to sign the petition caused the website to crash temporarily due to the high volume of traffic Saturday.

Apologies to those experiencing problems with the petitions site. We are working hard to fix it. Thank you for your patience. — Petitions Committee (@HoCpetitions) June 24, 2016

The petition, set up by William Oliver Healey, states: "We the undersigned call upon [the UK] Government to implement a rule that if the Remain or Leave vote is less than 60%, based on a turnout less than 75%, there should be another referendum."

Further to 100s of emails as a member of @HoCpetitions Select Committee, we will be considering 2nd #EUref on Tues https://t.co/iE8QAmbMf1 — Ben Howlett MP (@ben4bath) June 25, 2016

Thursday's referendum had a turnout of 72% -- an increase over last year's general election turnout of 66%, but below the 75% suggested in the petition.

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