"The question that would be asked was left open because we don't yet know the circumstance we're going to find ourselves in. There was no intention, nor did the motion rule out the option of remain. The meeting on Sunday was very clear that the question would be wide enough to encompass the option of remain," Starmer told BBC television.
UK Prime Minister Theresa May has reacted to Labour's approach on Twitter, calling it "Britain back to square one — betraying all those who voted in the 2016 EU referendum."
The Labour Party has never formally renounced the possibility of a so-called popular vote on Brexit, but both Jeremy Corbyn and his deputy, Tom Watson, have stated they would prefer it to be decided by a general election.
READ MORE: 'Get Out of the Way, Tories': UK Opposition Determined to Secure Brexit
Meanwhile, May is going to hold negotiations with US President Donald Trump on Brexit and the post-Brexit bilateral trade on Wednesday on the sidelines of the 73rd Session of the UN General Assembly (UNGA), according to local media.