Facebook Inc. will soon be hit by federal and state antitrust lawsuits accusing the social media giant of abusing its dominance and thwarting competition, according to three people familiar with the matter.

Lawsuits are expected as soon as this week from the Republican-led Federal Trade Commission and a group of state attorneys general led by New York's Letitia James, a Democrat, according to the people, who described the plans under condition of anonymity.

More videos