Washington, D.C., police are investigating the apparent suicide of a U.S. Secret Service supervisory agent assigned to President Obama's security detail.
"Rafael Prieto had a distinguished 20-year career with the Secret Service that was marked by accomplishment, dedication, and friendships," Secret Service spokesman Ed Donovan said in a prepared statement. "The Secret Service is mourning the loss of a valued colleague."
Prieto was in the midst of an administrative process related to his relationship with a foreign national, officials said.
Sources said there was no criminal investigation into Prieto and stressed that he was not connected in any way to the investigation of misconduct by Secret Service personnel in Cartagena, Columbia.
Prieto was not under investigation for espionage and there is no indication that sensitive documents were passed, according to law enforcement sources.
Prieto was found dead on Saturday. The D.C. Police declined to comment, citing an ongoing investigation.