most of those people are thought to be members of the uighur enin this case min -- ethnic minority. officials say uighurs who leave illegally could join islamic militants and then return home and launch terror attacks. >>> friday marked 40 years since khmer rouge forces marched into the capital. patchari raksawong is following the story. >> the takeover marks the beginning of what would become the worst ever atrocities in modern southeastern asian history. by 1975 indochina has been torn apart by decades of unrest. in cambodia communist forces rolled in where they toppled the pro-u.s. government. in the years that followed more than 1.7 million cambodians died from torture, starvation or forced labor. the entire country turned into what became known as the killing fields. on friday, a group of people gathered to remember the victims at a memorial service. it was one of the most notorious execution grounds in cambodia. >> translator: i come here today to pray and offer good blessings to those who were killed during the khmer rouge regime under pol pot. >> millions of cambodians were

observers say he was apparently referring to separatists in china's zin january uighur autonomous region which borders pakistan. china has close ties with pakistan include economic cooperation. observers say chinese officials are also interested in developing resources in afghanistan. >>> indonesian president joko widodo has called for deeper economic cooperation between asia and africa to eliminate poverty. the appeal comes ahead of the asian-african summit which starts in indonesia's capital jakarta on wednesday. joko spoke at the asian-african business summit on tuesday. he told business leaders that asia and africa have both posted economic growth of around 5% in recent years. but he called for deeper ties as indonesia prepares to mark the 60th anniversary of the landmark bandung conference. >> translator: 75% of the world population still suffers from poverty and conflict. i believe this forum is a place to realize and strengthen the spirit of bandung to cooperation and investments that ensures mutual benefits. >> leaders of newly independent asian and african countries gathered in

one of the more interesting groups that i came across were the uighurs. did want to have access to their training camps about 10 kilometers away, but there was a big compound. fortunately enough, the reporter is working with was both fluent any group in singapore we know what was going on. they're obviously learning how to strip and an ak-47 and put it together again. tony said watch this and he would bark at them in mandarin. they freaked out and you can see they are looking down. they didn't want to engage us. they said as to why they were there. their parents at a chinese restaurant in lahore pakistan and they were only there for the weekend. [laughter] the legacy of this is that the uighurs are still buried in this training camp. they are still creating trouble for the chinese in northwestern china and they are under a lot of pressure back home. back to kabul where you didn't need a visa the strip movies that was required. just good contacts here. you got to wait a while and eventually would get in. the daily life was something i was interested in as