00:33 NC Beach Yields Up Old Explosives Two pieces of unexploded WWII-era weapons wash up on North Carolina’s Outer Banks.

At a Glance Two unexploded naval mines were found on beaches along North Carolina's Outer Banks on Monday.

The unexploded devices were safely removed and nobody was hurt.

It's believed the test mines date back as far as World War II.

The list of bizarre things we've seen from Hurricane Maria grew yet again on Monday morning when two unexploded naval mines were found washed up on Outer Banks beaches.

The first such discovery was made at about 7:15 a.m. EDT Monday morning along Whale Head Beach in Currituck County , according to WITN.com. A team was dispatched to investigate the ordnance, and it was determined that the object was a training mine and was no danger to the public because it wasn't live, Sheriff's Lt. Jason Banks told WITN.

Four hours later, another unexploded device was found, this time on the Cape Hatteras National Seashore in Avon, the report added. The beach was closed until the Explosive Ordnance Disposal unit – the same group that checked out the device found in Currituck County – could safely remove it , WAVY-TV reported.

(MORE: Evacuations Ordered in Outer Banks as Maria Approaches )

<img class="styles__noscript__2rw2y" src="https://dsx.weather.com//util/image/w/untitled-1_5.jpg?v=at&w=485&h=273&api=7db9fe61-7414-47b5-9871-e17d87b8b6a0" srcset="https://dsx.weather.com//util/image/w/untitled-1_5.jpg?v=at&w=485&h=273&api=7db9fe61-7414-47b5-9871-e17d87b8b6a0 400w, https://dsx.weather.com//util/image/w/untitled-1_5.jpg?v=ap&w=980&h=551&api=7db9fe61-7414-47b5-9871-e17d87b8b6a0 800w" > Two unexploded devices are seen on Whale Head Beach (left) and Cape Hatteras National Seashore (right) in the Outer Banks of North Carolina, Monday, Sept. 25, 2017. (Currituck Sheriff's Office, National Park Service) (Currituck Sheriff's Office, National Park Service)

Banks told WITN it's possible the two training devices date back to World War II.

Beachgoers were warned that Maria's heavy surf could churn up more large objects and were instructed to report anything strange that washes ashore.

The U.S. National Park Service told the Associated Press that this is the third time unexploded ordnance has been found on North Carolina shores in the last 12 months.