US federal agents arrested are one of the most powerful in the world drug lords, Ismael "El Maya" Zambado, leader of Mexico's Sinaloa cartel, in El Paso, Texas.
According to world agencies, Zambada founded a criminal organization with Joaquin "El Chapo" Guzmán, who is currently in prison in the United States of America.
On Thursday, July 25, Guzmán's son, Joaquín Guzmán López, was also arrested, the US Department of Justice announced.
U.S. prosecutors in February charged Zambada with conspiring to make and distribute fentanyl, a drug more powerful than heroin that many see as the cause of the U.S. opioid crisis.
US Attorney General Merrick Garland said in a written statement that the two men lead "one of the most violent and powerful drug trafficking organizations in the world."
"El Mayo and Guzmán López join a growing list of Sinaloa cartel leaders and associates being held accountable by the Department of Justice in America," Garland wrote.
"Fentanyl is the deadliest drug threat our country has ever faced, and the Justice Department will not rest until every cartel leader, member and associate responsible for poisoning our communities is brought to justice," added Garland, the top US law enforcement official.
The DEA offered a $15 million reward for Zambada's capture
US prosecutors claim that the Sinaloa cartel is the largest supplier of drugs on US soil.
Authorities have previously noted that fentanyl is the leading cause of death for Americans ages 18 to 45.
The US Drug Enforcement Administration (DEA) was offering a $15 million reward for Zambada's arrest.
During the 2019 trial of Joaquin "El Chapo" Guzmán, his lawyers accused Zambada of bribing the "entire" Mexican government in exchange for his life without fear of prosecution.
"Guzman didn't control anything, Mayo Zambada did," Guzman's lawyer Jeffrey Lichtman argued to jurors at the time.
The State Department's website says Zambada owns several legitimate businesses in Mexico, including "a large dairy company, a bus line and a hotel," as well as a number of real estate properties.
In addition to the fentanyl charges, he is also charged with murder, kidnapping, money laundering and organized crime.
Zambada's nephew, Eliseo Imperial Castro, known as "Cheyo Anthrax," was killed in an ambush in Mexico in May and was wanted by U.S. authorities.
Source: BBC