GUATEMALA CITY, July 24 (Reuters) - Senior U.S. Department of State official Brian Nichols said on Monday he had spoken with Guatemalan Foreign Minister Mario Bucaro to stress the need to hold a free and fair run-off in the Central American country's presidential election next month. Nichols said on Twitter he had highlighted the need to "proceed without interference or harassment of candidates and parties," following attempts to suspend the party of anti-graft candidate Bernardo Arevalo. The U.S. had criticized police raids on the offices of Arevalo's center-left Semilla party on Friday. A senior Biden administration official last week described the raid as representing "authoritarian practices" and a violation of democratic norms by Guatemala's public ministry. Reporting by Mexico Newsroom and Matt Spetalnick in Washington Writing by Isabel WoodfordOur Standards: The Thomson Reuters Trust Principles.

---

Persons: Brian Nichols, Mario Bucaro, Nichols, Bernardo Arevalo, Arevalo, Sandra Torres, Matt Spetalnick, Isabel Woodford Organizations: GUATEMALA CITY, Senior U.S . Department of State, Guatemalan Foreign, Central American, Twitter, U.S, Biden, Mexico, Thomson Locations: GUATEMALA, U.S, Washington