Explainer-What's driving Haiti's humanitarian crisis?

(Reuters) - Haitians continue to flee their country amid gang violence that has left much of the Caribbean nation off limits to the government. Kidnappings have become increasingly frequent and gunbattles between police and crime groups a routine occurrence.

Haiti has around 200 gangs of varying size that have become de facto authorities in large parts of the capital Port-au-Prince and are immersed in illegal activities ranging from extortion to drug trafficking.