The US Secret Service has dismantled a massive network of electronic devices that could have been used to disable New York City’s cellphone network, officials say. 

Investigators found devices in vacant properties within 55km of the UN General Assembly meeting that’s taking place in Manhattan this week. 

US Correspondent Richard Arnold told Mike Hosking that allegedly foreign governments and criminals located in the US are using this network to run their organisations. 

He says they appear to have identified links to at least one foreign country and links to some known criminals, but have not said who.  

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