Haiti crisis: Neighbouring Dominican Republic builds border fences

Haitian gangs demand the prime minister's resignation after a mass jailbreak continues to leave streets in the capital deserted - we hear from a former US envoy to the country.

It's Super Tuesday in the United States as the Supreme Court clears the way for Donald Trump to compete in the Colorado primary vote - we get the thoughts of a Republican Congressman who supports Nikki Haley.

And our correspondent goes back to the Ukrainian city of Kharkiv and takes in its famous opera - this time taking place underground away from Russian drones and missiles.