Talks between Conservative and Labour teams have taken place for a second day, in a bid to end Brexit deadlock.
The discussions, which lasted 4.5 hours, were described as “detailed and productive” by the government.
Shadow Brexit Secretary Sir Keir Starmer said earlier that the idea of a “confirmatory” referendum on any Brexit deal would be discussed.
MPs backed a bill on Wednesday which would force the PM to seek a new delay to Brexit.
The House of Lords is due to debate it later on Thursday.
Thursday’s meeting between the government and opposition followed discussions between Theresa May and Jeremy Corbyn on Wednesday, which were described as “constructive”.
Leaving the talks, Sir Keir did not answer questions about what had been discussed, telling reporters: “We have had further discussions and we will be having further discussions with the
government.”
A Labour spokesman said the talks “are continuing and the teams are planning to meet again”.
A Downing Street spokesman said: “Today both sets of negotiating teams met for four and a half hours of detailed and productive technical talks in the Cabinet Office, supported by the civil service.”
