Speaking during an exchange with the SNP's Angus Robertson, Theresa May also warned against "constitutional game-playing".
Mr Robertson had accused Mrs May of breaking promises to secure a UK-wide agreement on Brexit.
She said there would be further talks with devolved administrations.
The heated exchange, at Prime Minister's Questions, came after First Minister Nicola Sturgeon announced plans to call for a second independence referendum in response to the UK voting to leave the EU.
Ms Sturgeon wants the vote to be held in the autumn of next year or the spring of 2019, to coincide with the conclusion of the UK's Brexit negotiations. » | Wednesday, March 15, 2017
