Malaysia has declared North Korea's ambassador persona non grata over the alleged murder of the North Korean leader Kim Jong-un's half-brother, and ordered the diplomat to leave the country within the next 48 hours.
Kang Chol's expulsion came on Saturday, just weeks after Kim Jong-nam was allegedly poisoned at Kuala Lumpur airport on February 13. "The expulsion of the North Korean ambassador is... an indication of the government's concern that Malaysia may have been used for illegal activities," Malaysia's foreign ministry said in a statement. 
The decision was made after he failed to appear at Malaysia's foreign ministry at 6 pm local time on Saturday despite being summoned.
Malaysian authorities were also expecting North Korea to issue an apology because of the accusations they were making against Malaysia. But that also didn't happen. Malaysia also cancelled a visa-free travel deal with North Korea and recalled its ambassador to Pyongyang.

Source: QNA