A former spokesman for the two previous presidents of Guyana has been detained in the slaying of a political activist before last year's general election in the South American country.

Police officials said Kwame McKoy was in custody Thursday after turning himself in to authorities for questioning in the March 2015 death of activist Courtney Crum-Ewing.

Police spokesman Wendell Blanhum said McKoy likely would be charged later in the week but did not provide details about his alleged involvement.

McKoy did not yet have a lawyer representing him and has not made any public statements about the case.

He was arrested along with several other men suspected of involvement in a killing that stoked tensions ahead of an election that ousted the governing People's Progressive Party.