Haitian police have arrested one of the suspected masterminds behind the assassination of President Jovenel Moise.

Authorities said they detained a Haitian man, living in the US state of Florida, whom they accuse of hiring mercenaries to remove and replace the president.

He allegedly hired Colombian mercenaries through a private Venezuelan security firm based in Florida.

The doctor is the third United States resident of Haitian origin and the 21st person overall to be detained as a suspect in the case.

Atleast three suspects were killed hours after the death of the President.

Moise was shot dead early on Wednesday at his Port-au-Prince home by what Haitian authorities describe as a unit of assassins comprised of 26 Colombians and two Haitian-Americans.

Haiti’s First lady was left battling for her life at a local hospital following the attack.