Malaysia has released the North Korean arrested over assassination of Kim Jong-Nam, estranged half brother of North Korean leader Kim Jong-Un at Kuala Lumpur International Airport. <br/><br/>A senior police official said, Ri Jong-Chol Ri, had been handed over to immigration authorities in the administrative capital of Putrajaya. Ri's release came two days after two women one Vietnamese and one Indonesian were charged with murdering Jong-Nam with a deadly nerve agent. <br/><br/>Seven other North Koreans are wanted in connection with the killing, including a diplomat and an airline employee who are believed to be in Malaysia. Four others are thought to have fled to Pyongyang on the day of the murder.