An online U.K. petition demanding a re-vote of the referendum that removed the country from the European Union has garnered more than 3 million votes since it was first circulated on Friday.
The petitioners are calling on the government to "implement a rule that if the remain or leave vote is less than 60 percent based a turnout less than 75 percent there should be another referendum." The petition only asked for 100,000 signatures, and far exceeded the number required to get an official government response, it said.
It was unclear, however, whether the participants were people who voted in favor of Brexit and changed their minds, or were comprised of voters who voted "remain" in the first place—or were even people eligible to vote in the U.K.
The "leave" camp won the divisive vote with 52 percent on a turnout of 72 percent, which was still the highest turnout in more than 20 years. The reverberations claimed the job of Tory Prime Minister David Cameron, and set off a wave of resignations among the opposition Labor Party leadership, which also backed the "remain" camp.
The Brexit vote has laid bare deep generational and geographic fissures, as older voters overwhelmingly chose to quit the 28-member bloc while younger voters opted to remain.
The results also pit regions of the kingdom against one another, as Scotland and Northern Ireland voted to remain, while Wales voted in favor of exit. Scottish officials have vowed to hold another referendum on independence from the U.K., a development that threatens to fracture the already divided kingdom.
Correction: An earlier version of this story mischaracterized Wales' vote.