Law enforcement sources tell TMZ the arrest occurred at 3 p.m. in Terminal 5. Williams, a popular comedian who recently starred in his own HBO stand-up comedy special, was stopped at the security checkpoint. Security officers found a concealed weapon in his carry-on luggage.

The LAPD was called and Williams, who is also a popular rapper, was arrested. Cops determined the concealed weapon was stolen. They also found three additional weapons in luggage that Williams had already checked in.

Williams, who is scheduled to host BET's first ever Hip-Hop Awards later this month, was booked on felony charges of carrying a concealed weapon and several other offenses.