This Oct 25, 2019 photo shows Facebook CEO Mark Zuckerberg speaking at the Paley Center in New York. (Mark Lennihan / AP)

Facebook Inc said on Friday it will start labeling newsworthy content that violates the social media company’s policies, and label all posts and ads about voting with links to authoritative information, including those from politicians.

READ MORE: Facebook reports spike in removals of hate speech

A Facebook spokeswoman confirmed its new policy would have meant attaching a link on voting information to US President Donald Trump’s post last month about mail-in ballots. Rival Twitter had affixed a fact-checking label to that post.

Zuckerberg also said Facebook would ban ads that claim people from groups based on race, religion, sexual orientation or immigration status are a threat to physical safety or health

Facebook has drawn heat from employees and lawmakers in recent weeks over its decisions not to act on inflammatory posts by the president.

“There are no exceptions for politicians in any of the policies I’m announcing here today,” Chief Executive Mark Zuckerberg said in a Facebook post.

Zuckerberg also said Facebook would ban ads that claim people from groups based on race, religion, sexual orientation or immigration status are a threat to physical safety or health.

The policy changes come during a growing ad boycott campaign, called “Stop Hate for Profit,” that was started by several US civil rights groups after the death of George Floyd, to pressure the company to act on hate speech and misinformation.

Zuckerberg's address fell short, said Rashad Robinson, president of civil rights group Color Of Change, which is one of the groups behind the boycott campaign.

"What we've seen in today's address from Mark Zuckerberg is a failure to wrestle with the harms FB has caused on our democracy & civil rights," Robinson tweeted. "If this is the response he's giving to major advertisers withdrawing millions

of dollars from the company, we can't trust his leadership."

Shares of Facebook closed down more than 8 percent and Twitter ended 7 percent lower on Friday after Unilever PLC said it would stop its US ads on Facebook, Instagram and Twitter for the rest of the year, citing “divisiveness and hate speech during this polarized election period in the US.”

More than 90 advertisers including Japanese carmaker Honda Motor Co Ltd’s US subsidiary, Unilever’s Ben & Jerry’s, Verizon Communications Inc and The North Face, a unit of VF Corp, have joined the campaign, according to a list by ad activism group Sleeping Giants.

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Hours after Facebook's announcement, Coca-Cola Co said starting from July 1, it would pause paid advertising on all social media platforms globally for at least 30 days.

One of Facebook’s top spenders, consumer goods giant Procter & Gamble Co, on Wednesday pledged to conduct a review of ad platforms and stop spending where it found hateful content. P&G declined to say if it had reached a decision on Facebook.

The campaign specifically asks businesses not to advertise on Facebook’s platforms in July, though Twitter has also long been urged to clean up alleged abuses and misinformation on its platform.

In a statement, a Facebook spokeswoman pointed to its civil rights audit and investments in Artificial Intelligence that allow it to find and take action on hate speech.

“We know we have more work to do,” she said, noting that Facebook will continue working with civil rights groups, the Global Alliance for Responsible Media, and other experts to develop more tools, technology and policies to “continue this fight.”