Mexican authorities have claimed that intelligence agents broke up a plot to smuggle al-Saadi Gaddafi, the son of Col Muammar Gaddafi, and other family members, into the country.
The elaborate plan, which allegedly involved two Mexicans, a Canadian and a Danish suspect, also involved opening bank accounts and buying properties in Mexico that were to have been used as safe houses by Saadi, according to Alejandro Poire, the interior secretary.
The plan was uncovered by Mexican intelligence agents in early September and the suspects were arrested and placed under house arrest while they are being investigated for falsification of documents, Mr Poire told a news conference.
The plotters allegedly jetted into Mexico, opened bank accounts and bought properties meant to be used as safe houses in several parts of the country, including one at the resort of Bahia de las Banderas on Mexico's Pacific coast.
"The large economic resources which this criminal organization has, or had, allowed them to contract private flights," Poire told a news conference.
Poire said the leader of the plot was a Canadian woman he identified as Cynthia Vanier. He said she had been detained on Nov 10 and is being held, along with three other suspects, under a form of house arrest on suspicion of falsifying documents.
Saadi Gaddafi, the deceased colonel's third son, is living under house arrest in the Western African country of Niger.
He was granted asylum on "humanitarian" grounds in Niger last month, risking the wrath of an Interpol request for his extradition.
Libya's new leaders made the 38-year-old was made the subject of an Interpol red notice.
Tripoli alleges he misappropriated property and engaged in "armed intimidation" when he headed the Libyan Football Federation. He also led his own militia and was accused of directing fire on civilians during the early stages of the uprising that that ultimately led to the fall of his father's 42-year regime.
Saadi Gaddafi is one of four Gaddafi family members who fled Libya during the uprising.
His mother Safia, older brother Muhammad and sister Aisha are all in Algeria.
Of the rest of the Gaddafi family, Col Gaddafi was killed in October along with his son Mutassum. Saif al-Arab Gaddafi was killed in an air strike earlier this year and son Khamis is understood to have been killed fighting. Only Saif al-Islam Gaddafi has been captured.