The brother of Barcelona star Lionel Messi has reportedly been arrested in Argentina.

Telam says Matias Messi was involved in a car collision in Buenos Aires and threatened the other person involved with a firearm, a claim attributed to several witnesses.

Although he was arrested at the scene and is expected to face a judge soon, police were apparently unable to find any firearm in his car but did come across evidence that he had been smoking cannabis.

Last November, he suffered a boating accident on the Parana River and had to be towed away by a local fisherman as he became stranded on a sandbar, after which he was arrested and released on bail for possessing an illegal firearm.