An operation by U.S. marshals in Alamosa led to five arrests, 19 cleared warrants and 28 completed sex-offender compliance checks, according to a news release by the agency.

Federal agents carried out Operation Sand Dune on Monday and Tuesday alongside officers from the Fountain Police Department, Alamosa County Sheriff’s Office, Alamosa Police Department, Trinidad Police Department and Huerfano County Sheriff’s Office.

Fountain police and U.S. marshals also arrested a suspect within the city on Wednesday accused of turning a Facebook Marketplace transaction into a robbery the day prior, according to the department.