Costa Rica uncovers alleged plot to assassinate president

Key Highlights

• Attorney General Carlo Diaz told reporters a female suspect was under investigation and described her as "quite active on social media" but gave no other details.
• He said there was no evidence of a link to the presidential and parliamentary elections set for February 1.
• The popular Chaves, constitutionally barred from seeking a second consecutive term, has backed one of his former ministers, Laura Fernandez, to succeed him.
• Fernandez is riding high in polls with a campaign to crack down hard on drug traffickers, blamed for a surge in violence in the picture-postcard Caribbean country.
• Opposition groups have warned against possible interference in the election from the iron-fisted president of nearby El Salvador, Nayib Bukele, who started a state visit to Costa Rica Tuesday.