Days after killing his politically-influential uncle and two associates, Kim Jong Un is telling North Korean business people in China to come home, reports the BBC.

North Korea's supreme leader had his second in command and uncle, Jang Song Thaek, arrested, tried, sentenced and executed for treason and other crimes this week. The breathtaking speed of the purge has left outside observers speculating about the internal dynamics at play. But North Korea isn't completely closed off to its ally China, which which it has some commercial and development ties.

However, Jang Song Thaek was in charge of economic ties with China, the Christian Science Monitor notes. Jang Song Thaek had been pressing for China to develop special economic zones in North Korea as an economic development tool, and led a major trade delegation to Beijing in 2012.

The laundry list of accusations large and small Kim Jong Un leveled against his uncle included selling North Korean natural resources cheaply to Chinese mining companies, as well as leasing a port impropertly to China in the Rason special economic zone on the Sea of Japan, the LA Times noted.

With his death, now the North Korean regime is recalling other North Korean business people in the north-eastern Chinese cities of Shenyang and Dandong, possibly as a test of loyalty, the BBC reported Friday.