President Donald Trump has said that a "swift and lethal kinetic" US strike has killed Hector Rusthenford Guerrero Flores, whom he called "the infamous leader" of the Tren de Aragua gang.

The "swift and lethal" attack by US military forces on Nino Guerrero "was coordinated closely with our friends in Venezuela, with whom we are working very well," Trump wrote on his Truth Social platform late on Friday, calling Guerrero "one of the most bloodthirsty Terrorist Organizations on Planet Earth."

Tren de Aragua has been labelled by the United States as a terrorist organisation.

Guerrero Flores was charged in a New York federal court with racketeering conspiracy and other crimes, including lending support to terrorists in crimes that stretched more than a decade, authorities announced in December.

The White House, Pentagon and US Southern Command did not immediately respond to a request for comment.

Trump said Guerrero’s killing brought "justice to the families of those they slaughtered, including the precious 12-year-old Jocelyn Nungaray, 22-year-old Laken Reilly, and countless other beautiful souls."