The Facts

• US federal agents arrested the leader of Mexico's Sinaloa cartel, Ismael "El Mayo" Zambada, and Joaquin Guzman Lopez, the son of his jailed ex-partner, Joaquín "El Chapo" Guzman, in Texas on Thursday.

• Zambada and Lopez face multiple charges for allegedly running the cartel's operations, including "its deadly fentanyl manufacturing and trafficking networks.Zambada and Lopez face multiple charges for allegedly running the cartel's operations, including "its deadly fentanyl manufacturing and trafficking networks."

• The FBI agents detained the suspected drug lords after they tricked them into boarding a plane to El Paso. However, one of the men is said to have been unaware that they were on their way to the US.