The White House said more needs to be done and reforms should happen given privacy and trust concerns raised about Facebook Inc.

White House press secretary Jen Psaki made the comments a day after former Facebook  product manager Frances Haugen testified before US Congress about concerns that the social media company harms children’s mental health and stokes divisions, Reuters reported from Washington. Facebook has denied wrongdoing

Meanwhile, American lawmakers pounded Facebook on earlier in the week, accusing CEO Mark Zuckerberg of pushing for higher profits, while being cavalier about user safety, and demanded regulators investigate whistleblower accusations that the social media company harms children’s mental health and stokes divisions.

Zuckerberg, hours later in a public Facebook post, defended the company, saying the accusations were at odds with Facebook’s goals.

“The argument that we deliberately push content that makes people angry for profit is deeply illogical,” he wrote. “We make money from ads, and advertisers consistently tell us they don’t want their ads next to harmful or angry content. And I don’t know any tech company that sets out to build products that make people angry or depressed.”

During a Senate Commerce subcommittee hearing, whistleblower Frances Haugen called for transparency about how Facebook entices users to keep scrolling, creating ample opportunity for advertisers to reach them.

“As long as Facebook is operating in the shadows, hiding its research from public scrutiny, it is unaccountable,” said Haugen, a former product manager on Facebook’s civic misinformation team. She left the nearly $1 trillion company with tens of thousands of confidential documents.

“The company’s leadership knows how to make Facebook and Instagram safer, but won’t make the necessary changes because they have put their astronomical profits before people. Congressional action is needed,” Haugen said.

In an era when bipartisanship is rare in Washington, lawmakers from both parties excoriated the company, illustrating the rising anger in US Congress with Facebook, which also owns Instagram and WhatsApp.

Senator Dan Sullivan, a Republican, said he was concerned how Facebook and subsidiaries like Instagram affected the mental health of children.

“We’re going to look back 20 years from now and all of us are going to be like, ‘What the hell were we thinking?’ ” Sullivan said.

Haugen revealed she was the person who provided documents used in a  Wall Street Journal  investigation and a Senate hearing on Instagram’s harm to teenage girls. She compared the social media services to addictive substances like tobacco and opioids.