A 65-year-old American man died after he triggered a homemade security device designed to keep out intruders at his home in Maine on Thanksgiving.

Ronald Cyr called the emergency services early Thursday evening, reporting that he had been shot, Van Buren Police Department said in a Facebook post

Police and medics arrived on the scene and gave Mr Cyr medical assistance but he "succumbed to the injuries he sustained from the gunshot".

Authorities said the front door of the house was rigged with a device designed to fire a handgun should anyone attempt to enter the door.

They discovered other "unknown devices" and police at the scene contacted the Maine State Police Bomb Squad.

After an "extensive investigation" which lasted into the early hours of the morning, involving three policing agencies, it was discovered that Mr Cyr had been shot as the result of him setting off "an unintentional discharge of one of his homemade devices".

The town of Van Buren has a population of just over 2,000 people and shares a border with the Canadian province of New Brunswick.