It's drone-mania in the US, after many mysterious sightings in New Jersey and the East Coast over the last month.

Associated Press reports there's been sightings in multiple states, including at a military research and manufacturing facility and at President-elect Donald Trump’s golf course.

Homeland Security and the FBI both say there's no evidence the sightings pose a national security threat.

US Correspondent Richard Arnold told Heather du Plessis Allan many local officials aren't convinced.

He says the New York Governor's been calling for further investigations and rolling out drone detection technology.

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