Ukraine presidential candidates lock horns in debate

Sergei CHUZAVKOV / AFP

Ukraine's rival presidential candidates have locked horns in a heated televised debate at Kiev's Olympic stadium.

Incumbent president Petro Poroshenko and comedian Volodymyr Zelensky traded barbs in the eagerly anticipated debate. 

Polls suggest that Zelensky is the clear favourite for Sunday's second-round vote.

However Poroshenko says the comedian and actor is not ready to lead a country. 

The debate was the first and only direct clash between the two candidates.

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