Mike Tyson was arrested at a ticket counter at LAX airport around 4:30 PM today, after he reportedly punched a paparazzo so hard that the man walked away leaving a trail of blood.

The photographer was reportedly following Mike, when Mike turned around and punched him in the face. The photog then got up and began to stumble away, leaving blood everywhere. Mike was taken into custody, and an ambulance took the photographer to a local hospital.

Update: According to a witness at the scene, Mike had just returned to the states after spending four days in England with his wife Lakiha Spicer, and daughter Milan. He was already upset over some lost luggage at the airport, when a cameraman named Tony started following him. Mike lost it when Tony trailed him to the bathroom. At that point, the two got into a heated argument, and punches were thrown. Police at the scene were unable to determine who started the fight, so both Mike and Tony were taken into custody.