Mexican police have arrested four alleged members of the Zetas drug cartel in connection with the August casino fire that killed 52 people.
Among those arrested Tuesday was former wrestler Jose Alberto Loera, known as "El Voltaje" or "Voltage". Police also confiscated drugs and weapons.
Last week authorities arrested the suspected mastermind of the attack, Roberto Carlos Lopez Castro.
The Casino Royale fire is one of the deadliest attacks in the Mexican drug war. Gunmen poured gasoline and set the casino ablaze.
The Mexican drug war has resulted in more than 40,000 deaths.
Some information for this report was provided by AP, AFP and Reuters.