Pyongyang known for fatal attacks on foreign territory

Seoul

IF North Korean agents are responsible for the assassination of Kim Jong-nam, the estranged half-brother of North Korea's leader, it would be the latest in a long line of targeted killings by the isolated state.

Mr Kim, whose younger brother Kim Jong-un has ruled North Korea since the death of their father in December 2011, died after reportedly being poisoned by two female agents at Kuala Lumpur International Airport on Monday.