SAN ANTONIO — A San Antonio police officer has been fired after an internal investigation determined he tried to give a homeless man a sandwich with feces inside it.

Police Chief William McManus said in a statement Friday that former officer Matthew Luckhurst committed a “vile and disgusting act.”

Luckhurst, a five-year member of the department, told another officer in May that he had picked up feces, placed it on bread and put it in a container for the homeless man.

McManus says the second officer told Luckhurst to retrieve the container but it’s not clear whether he did. At least two officers reported Luckhurst’s actions to supervisors.

Authorities have tried to find the homeless man. Efforts to reach Luckhurst for comment were unsuccessful.