Malaysia has stepped up diplomatic measures against North Korea in an escalating row over the killing of Kim Jong-nam, the half-brother of North Korea’s leader Kim Jong-un.
Kim Jong-nam died in mysterious circumstances last week at an airport in the Malaysian capital Kuala Lumpur.
Police believe he was poisoned.
Malaysia has recalled its ambassador from the North Korean capital Pyongyang and has summoned the North Korean ambassador “to seek an explanation”.
Malaysian police say they are now looking for four North Koreans.
Meanwhile a video which apparently shows CCTV footage of the attack on Kim Jong-nam has surfaced and aired on Japanese television.
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