Boris Johnson has rejected the First Minister's calls to step up travel restrictions amid the emergence of the Omicron Covid-19 variant in the UK.
Nicola Sturgeon revealed in a briefing on Monday morning that she and Welsh First Minister Mark Drakeford had signed a joint letter to the Prime Minister calling for a four nations Cobra meeting to discuss Omicron.
The Prime Minister's official spokesman said: "We would confirm any plans for a Cobra meeting in the normal way. Currently, there isn't one scheduled.
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"We obviously speak to our devolved administration counterparts very regularly and we will continue to co-ordinate our response with them."
Downing Street also refused calls from Sturgeon and Drakeford for the self-isolation period for travellers to be extended until the result of a test on day eight after arriving in the UK.
Extending the requirements would have a "detrimental effect" on the travel industry, No 10 said.

The spokesman said: "We believe that the approach we've taken is the proportionate one to the evidence that we currently have available about this variant.
"Introducing further isolation requirements and testing requirements would have a detrimental effect on the travel industry and indeed those who are planning to go travelling."