Prime Minister Boris Johnson has declined an invitation from Scotland's First Minister Nicola Sturgeon for a meeting thus underlining the intensifying stand-off between London and Edinburgh over Indyref2.

Scotland's First Minister Nicola Sturgeon has had a tense telephone call with Boris Johnson during which the two leaders repeatedly clashed over the issue of a second Scottish independence referendum.

Boris Johnson has invited the leaders of the Welsh and Scottish governments to a leadership summit in London as he tries to contain the constitutional fallout emanating from adversarial results in local and national elections across the UK.

Scotland's First Minister has spent the last day of campaigning for the Holyrood election urging the Scottish people to vote for 'strong and secure leadership'.

The Scottish Green Party's co-leader Lorna Slater has all but ruled out a post-election alliance with the Scottish National Party on policy grounds.

Alex Salmond had ratcheted up the pressure on London by insisting on opening talks on Scottish independence immediately after the Holyrood election in May.

Scotland's First Minister Nicola Sturgeon has formally launched the SNP's campaign for May's Scottish Parliamentary election by delivering a pre-recorded message to party members and supporters.