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 was a five-year member of the department when he 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 said the second officer told Luckhurst to retrieve the container but it's not clear if he did. At least two officers reported Luckhurst's actions to supervisors.

Authorities have tried to find the man given the container but he's not been located.

Efforts to reach Luckhurst for comment were unsuccessful.