al jazeera port hedlund. >> we are approaching the midway point on this news hour. holding on for dear life, justice is hard to find for some prisoners in somalia. >> scientists may have found a new weapon in the fight against alzheimer's. details later. >> in sport a night of drama in the u.a. as the champions league favorite crashes out. we will have all the details in around 20 minutes >> 21 aid groups accused the u.n. security council of fail to protect syrians. it's four years since the beginning of the uprising against president bashar al assad. more than 220,000 people have been killed. >> sri lanka's president said that he's going to set up a domestic eninquirey into war crimes during the countries civil war. u.n. investigators won't be involved despite international pressure. >> two police officers have been shot during a protest in the u.s. city of ferguson, missouri. one officer was shot in the face the other in the hold shoulder. earlier, ferguson's police chief quit over widespread racism in his department. >> more now on our top story. after four years

. >> so now port hedlund is much quieter. fewer people are needed to run infrastructure than build it. >> the port itself is busier than ever, on average, six huge ships arrive and load up each day, their across get a couple of hours onshore before starting the 15 day trip back to china. >> we vice president felt it in the mining industry, because all the carriers are still working. >> the volume of iron ore being exported is higher than ever, but with prices low it affect the workers and government. the boom days are over. >> three astronauts have spent nearly six months in orbit on the international space station have returned to earth. the american and three russians arrived in a capsule. there are still three astronauts at the space station with three more due to join them later this month. >> scientists identified almost 1500 new creatures in the world's oceans in the past year and believe there are many more out there. an international orders of the seas discovered two new dolphins types and new cat agree of giant jelly