The latest federal class action to hit Facebook Inc. on Tuesday accused the social media giant of violating privacy laws in allowing Cambridge Analytica to access personal information of 87 million users.

The complaint, filed in the U.S. District Court for the District of Delaware, joined a series of cases across the country that stem from the unfolding Cambridge Analytica debacle, and it came just hours before Facebook CEO Mark Zuckerberg began to testify before two Senate committees about online data privacy and other issues.