Feb. 4 (UPI) -- Former Bolivian President Evo Morales has not been seen in public for more than four weeks amid an outstanding arrest warrant and the announced return of the U.S. Drug Enforcement Administration to the country.

Morales, Bolivia's first Indigenous president and a central figure of the Bolivian left for 14 years between 2006 and 2019, has not appeared since Jan. 8 on his weekly Sunday radio program or at party or union events in the Tropics of Cochabamba, his historic stronghold.

He has also shown no significant activity on social media, a break from his usual pattern of public exposure, prompting widespread discussion in Bolivia.

The former president is facing an investigation for alleged aggravated human trafficking initiated in Tarija.

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