one of eleven african countries united nations is investigating for sanctions violations. from the channel, we can easily spot the rusting boats. so that s the susan 1 and the susan 2 kths. our investigations show that these shrimping trawlers are part of a lucrative joint venture between the mozambiquens and the north koreans. illegal as of last august and there are more sinister links than just a few fishing boats. investigators are being traing it all. surface-to-air missile, manned portable surface-to-air missiles, military radar air defense systems, the refurbishment of tanks. it s a long list. reporter: pyongyang exporting its deadly expertise for hard cash. even to mozambique s remote interior. bolstering administrations like this, the u.n. says, training elite forces for at least two years, military sources tell us. all of it under sanctions for more than a decade.
defense systems, the refurbishment of tanks. it s a long list. reporter: pyongyang exporting its deadly expertise for hard cash, even to mozambique s remote interior, bolstering military installations like this, the u.n. says, training elite forces for at least two years, military sources tell us. all of it under sanctions for more than a decade. so how do they keep their operations secret? the trail leads us to one of the busiest avenues. according to documents, this is the headquarters of the north korean trade emissary here. reporter: reviewed by cnn, the documents name a shadowy front company. in 2017, the u.n. revealed that it helped funnel at least $6 million in military contracts to pyongyang. hi, how are you, sir? reporter: some asians were living here. they left three or four months ago, says the property agent. nobody could tell us where they
from the channel, we can easily spot the rusting boats. so that s the susan 1 and the susan 2. our investigations show that these shrimping trawlers are part of a lucrative joint venture between the mozambicans and the north koreans. illegal as of last august and there are more sinister links than just a few fishing boats. investigators are tracking it all. surface-to-air missile, manned portable surface-to-air missiles, military radar air defense systems, the refurbishment of tanks. it s a long list. reporter: pyongyang exporting its deadly expertise for hard cash. even to mozambique s remote interior. bolstering military installations like this, the u.n. says, training elite forces for at least two years, military sources tell us. all of it under sanctions for more than a decade. so how do they keep their operations secret?
of at least 20 citizens. they have marked the original bullet holes in the wall. many people killed here tried tragically to get away to the service elevator. also further up on the fourth floor where the hostages were killed. reporter: the united nations has been pushing for joint controls in the capital for years. but politically it was perhaps too sensitive for malian politicians, but not now, not after the attack. malian patrols right in the heart of bamako, the heart of the country. they are used to patrolling in other areas but now the threat has come here. they re chasing possible leads. random checkpoints on a road just outside the city come up with very little. for years, terror struck in mali s remote interior, now the capital for longer a shelter.