TWO separate polls of UK voters have shown a clear majority think Boris Johnson should step down as Prime Minister over an alleged party in Downing Street during the first lockdown.

It was recently revealed that around 100 Downing Street staff were invited to a "bring your own booze" gathering in the Number 10 gardens by Johnson's principal private secretary Martin Reynolds in May 2020 - the height of the first coronavirus lockdown.

At the time of the party - May 20, 2020 - people were not allowed to meet more than one other person outside their household.

An urgent question was brought in Westminster on Tuesday where several MPs called for the Prime Minister to resign with SNP Westminster leader Ian Blackford saying if Johnson did not do so himself, he should be "forced" by Tory backbenchers.

The urgent question was asked of the Prime Minister who instead sent Paymaster General Michael Ellis to answer questions from MPs.

READ MORE: Tory MP torn apart for absurd defence of Downing Street party

Polls from Savanta ComRes and YouGov have found that a majority of voters think Johnson should resign as Prime Minster over the recent revelation.

The Savanta ComRes poll found that two-thirds (66%) of UK voters think Johnson should resign over the continued scandal around Downing Street parties. Excluding "don't knows" the figure calling for Johnson to resign increases to 73%.

The results for Scotland show that 79% want Johnson to go while only 21% want him to stay.

The snap poll from Savanta ComRes of 1040 UK adults found that the feeling was strongest amongst Labour voters with 85% saying Johnson should step down over the latest revelation.

A small majority of Tory voters think Johnson should stay in his position (45%) with an almost equal number thinking that he should step down (42%).

The poll also asked voters whether Johnson is an "asset" to the Conservative party with 64% responding that he is not and Tory voters evenly split on the matter.

A clear majority (83%) also agreed with the statement that there is "one rule for the [UK] government and another rule for everybody else", including 74% of 2019 Conservative voters.

It also showed that voters think the UK Government "let down" the public (86%), those who have lost loved ones to Covid (85%) and the NHS (83%).

WATCH: Sky News host comes up with ridiculous excuse for parties at No 10

A broader poll conducted by YouGov asked 5391 British adults whether Johnson should resign from his role.

The YouGov poll for Sky News showed that 56% of respondents believe Johnson should step down with 27% saying he should remain and 17% saying they don't know either way.

Excluding the "don't knows" the proportion of YouGov respondents that want Johnson to resign rises to 67%.

The results recorded by YouGov among Labour voters were similar to those of Savanta ComRes, with those saying he should resign (82%) but starker amongst Tory voters with a majority (52%) saying he should stay in his role and 33% saying he should step down.

Commenting, the SNP's deputy Westminster leader Kirsten Oswald MP said: "Despite Boris Johnson's desperate attempts to hide and try and wait for this latest scandal to pass, the reality is that people will not be fooled.

"With polls showing that an overwhelming majority of people across Scotland and the UK believe that Boris Johnson should resign over the latest reported Downing Street garden party, it's clear that he cannot simply brush this under his already stuffed carpet.

"People are rightly furious about the corrupt Tory government's conduct. While everyone else was following the rules, Boris Johnson and his Tory colleagues were flouting them.

"Tory MPs must take responsibility and show him the door – or the whole party will be further tainted by the lies, arrogance and rule-breaking."

Earlier, Scottish First Minister Nicola Sturgeon was asked for her verdict on whether Johnson should step down.

She said: "I don’t think it will surprise anybody to hear my view that the office of Prime Minister would be greatly enhanced by Boris Johnson’s departure from it, but more importantly I think at this moment in time the interests of the United Kingdom would be enhanced by that as well.”

READ MORE: Ruth Davidson speaks out in party row – while Scottish Tories are in 'hiding'

Following the revelation, Johnson backed Reynolds, his principal private secretary, who currently "continues in his role" despite the email showing him inviting more than 100 people to a BYOB event in the Downing Street garden during Covid restrictions.

There is currently an inquiry ongoing into the alleged gathering and Johnson has not said whether he attended.

Scottish Tory leader Douglas Ross has said Johnson should resign if he attended the party and broke Covid rules, while his predecessor Ruth Davidson tweeted: "Nobody needs an official to tell them if they were at a boozy shindig in their own garden. People are (rightly) furious. They sacrificed so much – visiting sick or grieving relatives, funerals. What tf [the f***] were any of these people thinking?”

Both the Savanta ComRes and YouGov surveys were conducted on January 11.