Nicola Sturgeon said Scotland 'stands in solidarity' with the 'wonderful city' of London
Nicola Sturgeon said Scotland "stands in solidarity" with the "wonderful city" of London following the "heinous" attack.
The First Minister also confirmed there had been a "substantial uplift in armed officers on duty" across Scotland's major cities.
Her comments came after it was confirmed a stalled Holyrood vote on her demands for a second independence referendum will now take place next Tuesday.
Her minority SNP administration with the backing of pro-independence Greens was expected to secure MSPs' approval for her plan pursue second poll on breaking up Britain.
But the second day of debate was suspended on Wednesday afternoon in the wake of the assault on democracy.
Presiding Officer Ken Macintosh said that was "an expression of our support for our sister Parliament".
Holyrood was united in its condemnation of the attacks
Mr Macintosh opened today's session saying he had sent a letter to Commons Speaker John Bercow and London Mayor Sadiq Khan conveying "sympathy and sorrow" and "solidarity with fellow parliamentarians".
Acts of terrorism are not the responsibility of any one faith or section of our society
Ms Sturgeon spoke of her "shock and sadness" over the attack and sent "heartfelt condolences to those who have lost loved ones" and the injured.
The SNP leader also backed Prime Minister Theresa May declaring "we stand united in our core values of democracy, human rights and the rule of law – those values are strong, and they will endure".
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She added: "We know that, at times like these, it can be all too easy to look for someone to blame. It is important therefore that we are very clear about this:
"Acts of terrorism are not the responsibility of any one faith or section of our society.
"The only people to blame for acts of terrorism are the individuals who plan and perpetrate them."
Ms Sturgeon also told MSPs "our thoughts and prayers" were with the family of slain Metropolitan Police officer Keith Palmer.
And she insisted: "The only people to blame for acts of terrorism are the individuals who plan and perpetrate them.
"Terrorists seek to undermine our values and destroy our way of life. They will not succeed."
The First Minister also confirmed there had been a 'substantial uplift in armed officers on duty'
Scottish Tory leader Ruth Davidson said the "attack on our values" had "failed", adding: "Once again we express our gratitude to the police officers and security guards who at Westminster – and here at Holyrood – work to keep us safe, whose bravery we only truly appreciate at a time like this.
"People like PC Keith Palmer, who lost his life yesterday doing his job, doing his duty.
"The lesson here is not to tar one religion or one group in the coming days – but to tackle the evil of terrorist ideology itself.
"Not to vilify or blame whole communities, but instead to show we all stand united against terror, and stand united in defeating it."
Live images as London's Gherkin building evacuated Thu, March 23, 2017
London's iconic Gherkin building was evacuated less than 24 hours after a terror attack in nearby Westminster
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Scottish Labour leader Kezia Dugdale said: "We must send a strong message that Britain remains an open and tolerant nation that is home to people of all faiths and nationalities."
Flags at Holyrood flew at half mast yesterday while there was an increased police presence in and around the building.
Earlier Ms Sturgeon joined other MSPs for a minute's silence.
Meanwhile, Mr Macintosh chaired a meeting of party business managers today morning over rescheduling the vote.
It is understood the Scottish Government wanted it to take place next Thursday after Prime Minister Theresa May triggers Article 50 to begin the formal process of leaving the EU.
The SNP leader also backed Prime Minister Theresa May
Sources said Tories, Labour and the Lib Dems all argued for a vote tonight with the Commons and Lords back to work following the London atrocity.
However SNP and Green members, who out number rivals on the Scottish Parliament's business bureau, maintained it be held next week.
Partick Harvie's Green party have given up its business slot on Tuesday afternoon to enable it to take place then.
Ms Sturgeon is seeking Holyrood's consent to pursue a Section 30 order to hold a legally-binding poll.
She leader wants a re-run of the divisive 2014 vote on separation to take place between autumn 2018 and spring 2019, while Mrs May has rejected the timing.