Anti-corruption crusader Bernardo Arevalo was sworn in as Guatemala's president in the early hours of Monday after a chaotic inauguration that was delayed for hours by a last-ditch attempt by Congress opponents to weaken his authority.

Guatemala: Bernardo Arevalo sworn in as president after chaotic inauguration

The United States on Monday congratulated Alejandro Giammattei on winning Guatemala's presidential election and pledged to work with him on halting migration from the Central American country.

US looks to work with new Guatemala president Alejandro Giammattei on migration

Conservative Alejandro Giammattei swept aside his centre-left rival in Guatemala's presidential election on Sunday and now inherits an unpopular migration deal agreed under duress with the Trump administration that could severely test his country.

Guatemala conservative Alejandro Giammattei romps to landslide win, faces big migration test