Mark Zuckerberg will reportedly address the public over the Cambridge Analytica scandal in the next 24 hours.

The Facebook founder will make a statement days after it was revealed the British data firm had obtained information belonging to more than 50 million Facebook users without their permission.

The statement is aimed at 'regaining trust,' according to Bloomberg, after Zuckerberg avoided speaking about the breach for several days.

It also comes after reports he is facing fury from his own employees after he reportedly failed to attend a crisis meeting about the scandal, which has wiped billions off the social network's share price and Zuckerberg's personal wealth.

Facebook shares slipped another $3.19, or 1.9 percent, to $164.96 on Wednesday as authorities in Britain and the Unites States launched investigations into alleged improper handling of user data.

Facebook held an open meeting at its California headquarters on Tuesday for employees to ask questions.

Scroll down for video

Mark Zuckerberg will reportedly address the public over the Cambridge Analytica scandal in the next 24 hours

But employees were dismayed when neither Zuckerberg nor Facebook chief operating officer Sheryl Sandberg attended the meeting, which was instead run by the company's top lawyer Paul Grewal.

Some frustrated staff members took to the anonymous messaging app Blind to discuss the situation, Business Insider reports.

As criticism against Facebook continues to mount, some employees have said they are angry that Zuckerberg – who has kept a low profile since the story broke – has yet to speak up to defend the company.

'Everybody at Facebook in first year gets immunized to stories about Facebook – or they quit,' one former employee told Business Insider.

'But there are plenty of people irked about this, about Facebook's silence. They want Mark to go on TV.'

Zuckerberg has remained silent on his own Facebook page, where he often shares updates. His last post was a picture of himself baking with his wife to celebrate Purim on March 2.

MailOnline has contacted Facebook for comment.

Leading Democrats in the US Senate also called on Mark Zuckerberg to testify about the case

Facebook shares have fallen 11 percent this week following reports that Cambridge Analytica, a data mining firm that worked for President Donald Trump's campaign, took data from the accounts of 50 million Facebook users without their permission.

The stock is down 15 percent from the all-time high it set February 1.

It means more than $50 billion has been wiped off the company's market value, since the revelations were first published - raising questions about whether social media sites are violating users' privacy.

It came after Chris Wylie, a 28-year-old Canadian data analytics expert who worked with Cambridge Analytica, blew the whistle on the scandal by revealing to the Observer that more than 50 million Facebook profiles had been accessed without approval.

A graduate of the London School of Economics university who initially worked with Britain's small Liberal Democrats party, he claims he helped set up the CA project, as well as helping forge its contacts with US strategist Bannon and wealthy Republican donor Robert Mercer.

Cambridge Analytica's board of directors suspended CEO Alexander Nix (pictured) pending an investigation after Nix boasted of various unsavory services

Facebook suspended his account when the story broke, while Cambridge Analytica says he is a former contractor who left in 2014 and has been 'misrepresenting himself and the company' in his comments to the media.

But on Tuesday, Cambridge Analytica's board suspended CEO Alexander Nix after Channel 4 News broadcast hidden camera footage of him suggesting the company could use young women to catch opposition politicians in compromising positions.

Footage also showed Nix bragging about the firm's pivotal role in the Trump campaign.

Nix said Cambridge Analytica handled 'all the data, all the analytics, all the targeting' for the Trump campaign, and used emails with a 'self-destruct timer' to make the firm's role more difficult to trace.

Chris Wylie, who worked with Cambridge Analytica, blew the whistle on the scandal by revealing more than 50 million Facebook profiles had been accessed without approval

Meanwhile, Facebook is drawing criticism from politicians on both sides of the Atlantic for its alleged failure to protect users' privacy.

The chairman of the U.K. parliament's media committee, Damian Collins, said his group has repeatedly asked Facebook how it uses data, but company officials 'have been misleading to the committee.'

The committee summoned Zuckerberg to testify, but Facebook sidestepped questions on whether he would appear, saying instead that the company is currently focused on conducting its own reviews.

Britain's information commissioner, Elizabeth Denham, said she is pursuing a warrant to search Cambridge Analytica's servers.

She has also asked Facebook to cease its own audit of Cambridge Analytica's data use.

Denham said the prime allegation against Cambridge Analytica is that it acquired personal data in an unauthorized way, adding that data protection laws require services like Facebook to have strong safeguards against misuse of data.

Channel 4 News broadcast hidden camera footage of Alexander Nix suggesting the company could use young women to catch opposition politicians in compromising positions

Leading Democrats in the U.S. Senate also called on Zuckerberg to testify. Sen. Dianne Feinstein of California, the top Democrat on the Senate Judiciary Committee, called Facebook's latest privacy scandal a 'danger signal.'

She wants Zuckerberg's assurances that Facebook is prepared to take the lead on measures to protect user privacy - or Congress may step in.

And the academic who developed the app used by Cambridge Analytica to harvest data from Facebook users said Wednesday that he had no idea his work would be used in Donald Trump's 2016 presidential campaign.

Alexandr Kogan, a psychology researcher at Cambridge University, also claimed he's being scapegoated in the fallout from the affair.

He told the BBC that both Facebook and Cambridge Analytica have tried to place the blame on him for violating the social media platform's terms of service, even though Cambridge Analytica ensured him that everything he did was legal.

Kogan's work involved modeling human behavior through social media.

In collaboration with Cambridge Analytica, he developed a Facebook-based personality survey called 'This Is Your Digital Life' and paid about 200,000 people to take part.

As a result, participants unknowingly gave the researchers access to the profiles of their Facebook friends, allowing them to collect data from millions more users.

Kogan said Cambridge Analytica approached him to gather Facebook data and provided the legal advice that this was 'appropriate.'

'One of the great mistakes I did here was I just didn't ask enough questions,' he said. 'I had never done a commercial project; I didn't really have any reason to doubt their sincerity. That's certainly something I strongly regret now.'

He said the firm paid some $800,000 for the work, but it went to participants in the survey.

'My motivation was to get a dataset I could do research on; I have never profited from this in any way personally,' he said.