2 detained in connection with missing couple found dead in Belize: Police

PHOTO: Drew DeVoursney, 36, and girlfriend Francesca Matus, 52, appear in this still from a WSB-TV video.PlayWSB-TV
WATCH The mysterious case of missing couple found dead in Belize

Police have detained two people in connection with the suspected murders of an American man and his Canadian girlfriend, who were found dead Monday afternoon in Belize.

Drew DeVoursney, 36, of Atlanta and Francesca Matus, 52, of Toronto were reported missing last week, and their remains were found Monday in an "advanced state of decomposition," with DeVoursney's body on top of Matus', according to police.

Police have referred to the case as a murder investigation but have not released any more information about the two suspects detained or any possible motive behind the killings.

Police say the investigation is ongoing.

This is a breaking story. Please check back for updates.

ABC News' Radia Kirit and Anne Laurent contributed to this report.