Haiti on Thursday prepared to bury its slain president under tight security, just over two weeks after his assassination further rattled a country mired in poverty, corruption and political instability and stirred longstanding racial tensions among its population.

Jovenel Moise, who was 53 when he was shot dead in his home in the early hours of July 7, will be interred Friday in Cap-Haitien, the main city in his native northern region.

The city was calm Thursday but a day earlier, clashes broke out when police chief Leon Charles visited. He was booed and heckled while inspecting security arrangements for the funeral.

Local residents blamed the police chief for not protecting Moise, whose wife Martine was seriously wounded in the gun attack, seemingly carried out by a group of mainly Colombian retired soldiers – with no injuries to the presidential guard.

So far, more than 20 people have been arrested, most of them Colombians, and police say the plot was organized by Haitians with links outside the country and political ambitions.

But the case remains murky, with many unanswered questions.

Haitians have expressed shock that those who were tasked with protecting the president and his home failed so abjectly to do so. The impoverished Caribbean nation is riddled with crime and powerful gangs – problems that only got worse under the rule of Moise.

His death has rekindled longstanding tensions between the north of Haiti and the west, where Port-au-Prince is located. Some have even set up barricades on roads leading to Cap-Haitien to keep people from the capital from attending the funeral.