U.S. Marshal’s are offering a reward for help locating two people believed to be involved the machete murder of a Mississippi man last month.

WLOX TV in Biloxi reported Thursday Marshals will pay a $2,500 reward for information leading law enforcement authorities to the arrest of Eli Martinez Medina and Leila Darlene Lizana.

Police believe Medina killed a Gulfport man, Frederick Plummer, with a machete on Feb. 24. Medina faces a charge of first-degree murder. Lizana is wanted on a charge of accessory after the fact.

Law enforcement officers have said the pair should be considered armed and dangerous, advising anyone who sees the pair to simply call police and not approach them.

Any person with information about the pair is asked to call the United States Marshals at 800-336-0102.