Robert Downey Jr.'s son Indio has reportedly been arrested for possession of cocaine.

According to TMZ, the actor's son was a passenger in a car in West Hollywood, California over the weekend when a police officer pulled up alongside the car and pulled them over after seeing Indio smoking something out of a pipe. The cop searched the car and allegedly arrested 20-year-old Indio after finding cocaine in his possession, the site reports.

According to the Daily Mail, this is not the first time Indio has dealt with drug problems -- in October 2013 they reported that he was receiving treatment for a pill addiction. Sadly, Robert Downey, Jr. is no stranger to drug addiction himself, undergoing a public battle with addiction for years -- one that even landed him in prison before he turned his life around and made a comeback as a blockbuster movie star.