Wanted posters of Chinese army officers
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Chinese army officers charged with spying by US

19 May 2014 Last updated at 23:40 BST

The US has charged five Chinese army officers with hacking into private-sector American companies in a bid for competitive advantage, in the first cyber-espionage case of its kind.

US prosecutors say the officers stole trade secrets and internal documents from five companies and a labour union.

China denied the charges and warned the case would harm US-China relations.

Mark Mardell reports from Washington.