The Inter-American Commission on Human Rights asked Guatemala to provide more protections for President-elect Bernardo Arévalo and Vice President-elect Karin Herrera, it said on Thursday, citing “serious and urgent” risks to their wellbeing.

In a statement, the commission said the threats include two plots against the politicians’ lives. In response, the government said it has already reinforced security, and called on the IACHR to be “prudent.”

Anti-corruption candidate Arévalo won Guatemala’s presidential runoff on Sunday by a landslide after an effort to disqualify his party and sideline his candidacy.

Before the runoff, Arévalo said he expected attempts to prevent him from taking office should he win.

The IACHR, an autonomous organ of the Washington-based Organization of American States, said it formally requested the Guatemalan government to take precautionary measures to protect the lives of Arevalo and Herrera.

The commission cited two plans against Arevalo and Herrera’s lives, including one that had been alerted by Guatemalan prosecutors, without giving further details.

The IACHR, noting that Guatemalan authorities had told them Arévalo and Herrera have a “broad protection scheme” that the state has reinforced, asked the government to report on actions it has taken to investigate the threats.

The government, in a statement, said it had provided “all necessary protection measures”.

“The commission must always speak objectively and guarantee impartiality due the consequences of unfounded statements,” the government said.

Arévalo unexpectedly emerged out of political obscurity to build a large anti-graft movement with his Semilla party, after many other opposition candidates were barred from running.

His victory marked a repudiation of Guatemala’s established political parties that wield huge influence.

When Arévalo landed a surprise second-place finish in June’s first round of voting, official results were delayed as opponents alleged irregularities and his party was then briefly suspended at the request of a prominent prosecutor before Guatemala’s top court reversed the ban.

Risa Grais-Targow, analyst at political risk consultancy firm Eurasia Group, said she expected attacks on Arévalo to continue.

“The ruling pact will likely continue to target electoral officials and Arévalo’s Semilla party with investigations ahead of January’s change in government,” she said.

-Reuters