The President of Haiti Jovenel Moïse has been assassinated and his wife Martine Moïse was seriously injured in an attack on their home in the nation’s capital, Port-au-Prince.
Gunmen stormed the property at 1:00am local time, Prime Minister Claude Joseph said.
He also called for calm and declared a state of emergency nationwide.
Mr Moïse had led Haiti, one of the poorest nations in the world, since 2017 but had faced widespread protests demanding his resignation.
The nation’s recent history has been plagued by coups, political instability and widespread gang violence.
UK Prime Minister Boris Johnson tweeted that he was “saddened at the death of Mr Moïse”, calling it “an abhorrent act” and appealing for calm. US President Joe Biden offered condolences to the people of Haiti for the “horrific assassination”.