i'm john vause. another hour of "news room l.a." starts right now.

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i'm john vause. another hour of "news room l.a." starts right now. >> we'll get to those stories in just a moment. but we begin with more troubling news in the global financial markets. the trading day in china ends almost as quickly as it begins after a rapid selloff triggered automatic circuit breakers. it's been a rough day so far across the asia pacific region. stocks are down right now across the board. let's take a look at the numbers. hong kong down more than 2.5%. and the seoul kospi down by 2% as well. abo about four hours ago, walk us through how we got to this point. >> most of the investors and the analysts that we have spoken to are pointing to an overnight loss of value. the selloff dropped to its lore value since 2011. that really seeped to have spook investors. we've spoken to some observers about those circuit breakers that you mentioned. when the stock market, when the csi 300 index drops to 5%, trading is automatically halted for 15 minutes. that's supposed to give investors a chance to calm down. but what observe

i'm john vause. >> i'm isis issesay. "newsroom" starts right now. with starts with new video from mexico showing the violent laid on joaquin el chapo guzman. [ gunfire ] >> this was the scene on friday, the incredible point of view from military forces as they closed in on el chapo. five of his men were killed in the shootout but after a chase guzman was captured alive. >> he's now back in the same prison he escaped from this past july. mexican authorities say an interview with guzman that he gave to actor sean penn was essential in locating the cartel leader. >> guzman went to great lengths to avoid being captured. he dug a network of tunnels, his made about a dozen of them, heavily armed. martin joins us now from juarez. he had all of that preparation. just doesn't enough for mexican marines. >> it did turn out well. it was a very good operation. clearly it appears that those mexican marines have learned from training that is believed to have come from u.s. special forces. they carried out that strike in a very effective manner and eventually got

i'm john vause. the headlines this hour.rst of five americans released from iran last weekend is now home in boston. matthew trevithick arrived on monday. his release was not part of a prisoner swap which freed four other americans. >>> moroccan americans released a belgian man linked to terror attacks in paris. spokesman for the bureau says he knew the terrorist well. french law enforcement says the man traveled to syria in 2013 with a suicide bomber who blew himself up during a police raid after the attacks. >>> china's economy still growing but at the weakest rate in 25 years. gdp for 2015 came in at 6. %. right in line with government expectations. slowing chinese economy has been a key factor in plunging financial markets around the world. >>> back now to the relations between the united states and iran. wolf blitzer sat down with u.s. secretary of state john kerry to find out what is behind the latest diplomacy. he asked him if the prisoner swap was linked to the nuclear deal. >> no, we really almost had an agreement -

i'm john vause. "amanpour" is up next.newsroom" is coming up right after this. what makes this simple salad the best simple salad ever? heart healthy california walnuts. the best simple veggie dish ever? heart healthy california walnuts. the best simple dinner ever? heart healthy california walnuts. great tasting, heart healthy california walnuts. so simple. get the recipes at walnuts.org. that's why i run on quickbooks. details. i use the payments app to accept credit cards... ...and everything autosyncs. those sales prove my sustainable designs are better for the environment and my bottom line. that's how i own it. powers, iran, and saudi arabia. threatens a region that's already inflamed. saudi insider is live with us. and here the former british foreign secretary jack straw tells me the severing of ties is a serious blow to the fight against isis. >> it will make cooperation, which is essential, against isis

i'm john vause. newsroom l.a. starts now.

i'm john vause out of los angeles. a test of a hydrogen bomb registered a magnitude of 5.1. north korea has only tested less powerful plutonium bombs. it

i'm john vause. >> i'm isis issesay. "newsroom" stari

i'm john vause out of los angeles. a test of a hydrogen bomb registered a magnitude of 5.1. north korea has only tested less powerful plutonium bombs. it said it's protected its sovereignty. the test means a higher stage of the dprk's development of the nuclear force by suck succeeding the h-bomb test in the most perfect manner in history the dprk proudly joined the advanced ranks of nuclear weapons states. the prime minister sshinzo abe referred to the test as a threat to japan's security. they clearly lated the security council's resolutions adding it's a serious challenge to the nuclear nonproliferation efforts. in seoul following this breaking news with more. paula, just walk us through for people just tuning in. how did this aun unfold? and to be honest, this may have been a surprise to us, but certainly the north koreans telegraphed this could have happened. >> this happened at 10:00 a.m. local time. so about four hours or so now. the north koreans giving that statement, saying that they have succe successfully tested a hydrogen nuclear device. we don't know at this po

i'm john vause. the first hour of newsroom l.a. starts now.

angeles decide not to file charges in two cases of sexual misconduct against bill cosby. 4 i'm john vausewsroom l.a." starts right now.

i'm john vause. newsroom l.a. starts now. >> there are reports of gun fire at a university. the school is 150 kilometers from islamabad. three gunmen are said to be hiding in different parts of the university. a journalist on the scene tells cnn a blast was heard near the main gate. as of now, the school's chancellor is telling pakistani media no students have been hurt. but according to geo news, at least five people have been injured and taken to hospital. all of this coming just over a year after the taliban killed 134 students at the school in the city not far from here. we'll have live updates for you as soon as we get them. >> sarah palin endorsed donald trump for president. it was a raucous, sometimes meandering speech. its lashed out at isis, the establishment republicans and hillary clinton. >> are you ready to make america great again? >> better than anyone, isn't he known for being able to command, fir fire. are you ready for a commander-in-chief? are you ready for a commander-in-chief who will let our warriors do their job and go kick isis' ass? >> for the gop es

i'm john vause. japanese stocks surged in afternoon trade, finishing the day up almost 6%.reen across the board. the shanghai composite also in positive territory. hong kong also up by almost 2.5%. and australia, positive territory there up by more than 1% as well. the kremlin is calling accusations that russian president vladimir putin, quote, probably approved the killing of alexander litinyenko after a british inquiry released their report. he was poisoned in 2006 apparently by a radioactive substance in his tea. rueters is reporting at least 17 people are dead after an attack at a beach side resort in the so mali capital. al shabaab is claim iing responsibility. >> isis claiming responsen't for an attack in egypt that killed six people. a bomb went off as police were trying to secure an apartment in giza, which had been bobby trapped. the interior ministry said the explosives were planted by members of the muslim brotherhood, which the government considers a terrorist group. the u.s. east coast is expected to bear the brunt of 30 inches or up to a meet that could fall q