More than one million people have signed their name on an online petition calling for a new EU referendum.
The milestone was reached at about 10.45am on Saturday, just over 24 hours after official confirmation that Britain had voted to leave the EU following the historic vote.
The petition, set up by William Oliver Healey, states: "We the undersigned call upon HM 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."
The clamour to add signatures to the Government website-hosted petition comes amid dissatisfaction from voters who wanted the country to remain part of the union, while anecdotes immediately began to emerge from those who said they regretted voting to leave.
The referendum saw 51.9% of votes cast to leave the EU, versus 48.1% for remaining part of the bloc, with a turnout of 72.2%, according to the Electoral Commission.
It resulted in David Cameron announcing his resignation as Prime Minister while the pound slumped to its weakest level for three decades.