Facebook Inc said on Wednesday it is starting to remove the recommendations it gives global users for political and social issue Facebook groups, a move it has billed as turning down tension on the site.

The company also announced in a blog post changes aimed at reducing the reach of groups that break site rules, including showing them lower in algorithmic recommendations and alerting people when they go to join a group that has previously violated policies, Reuters reported.

Researchers and civil rights organizations have long warned that Facebook groups, a product the company has vigorously promoted as providing places for people with common interests, like sports or music, have also been used to spread misinformation and organize extremist activity.

In an interview on Tuesday, Tom Alison, Facebook’s vice president of engineering, said the company was aggressively investing in groups.

He said the changes to political and civic group recommendations, which Facebook CEO Mark Zuckerberg announced on an earnings call in January, were due to users wanting to see less political content.