The Instagram account of anti-vaccine activist Robert F. Kennedy Jr. was taken down by the Instagram society on Wednesday.

A spokesperson for Facebook, which owns Instagram, said in a statement, “We removed this account for repeatedly sharing debunked claims about the coronavirus or vaccines.”

He is a son of the late former US Attorney General, US Senator, and presidential candidate Robert F. Kennedy, who has publicly voiced his opposition to vaccines. Despite the benefits of vaccination, he is lobbying Congress to exempt parents from state mandates. He says that while he has anti-vaccine views, he also supports them in principle and that his children have all gotten vaccinations.

More than 300,000 people follow Kennedy’s Facebook page at the time of publication. At this time, no plans have been made to remove that page, says a company spokesperson.

The nonprofit group, Children’s Health Defense, Kennedy chairs that express disbelief about the health advantages of vaccines, said it could not immediately comment on Instagram’s actions.

It has been difficult for Facebook for years to eradicate misinformation about vaccines, and it just announced yet another effort this week.

The company announced this Monday several ways to combat vaccine misinformation, including making it hard to search for wrong information about the vaccination.

According to reports, Instagram continues to show prominent anti-vaxxer accounts in its search results, while anti-vaccine Facebook groups are easy to find. Since the United States is in the midst of its largest vaccine rollout ever to address the current coronavirus pandemic, these findings have caused some concerns among public health experts.