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Approved by the China Securities Regulatory Commission, liquefied petroleum gas futures and options started trading at the Dalian Commodity Exchange in Dalian, Northeast China's Liaoning province, on Monday.

Art groups from the universities and colleges are also encouraged to perform in the rural schools.

Apple Inc shares declined on Monday after US President Donald Trump told the iPhone maker it should move production to America from China to avoid his upcoming tariffs.

Around 300 people, including defendants' relatives, representatives of the victims and officials from the US consulate in Shanghai, were in the courtroom to listen to the case.

Ardern had earlier vowed to investigate the role social media played in the attack and to take action against the sites that broadcast it. These platforms "are the publisher, not just the postman", she told Parliament.