SITKA, Alaska (AP) — The low water level at a lake near Sitka led to the discovery of explosive material near the shore.

A person found plastic tubes near a ramp into Blue Lake last week and reported the items to the fire department, the Daily Sitka Sentinel reported Monday.

The tubes with explosive material inside were found in holes in an area usually covered by water, said Bryan Bertacchi, the electric utility director for Sitka.

"The water is at its lowest level since the most recent construction," Bertacchi said, referring to the 2014 project that increased the height of the lake's dam.

The city called in a licensed explosives handler, Southeast Earthmovers, to remove the material. The contractor destroyed the items by burning them a safe distance away.

The contractor believed the material was older than the last dam project, Bertacchi said. The public was not believed to be in any danger, but officials took precautions to safely remove the items, he said.

The U.S. Forest Service closed the road leading to the lake through late last week while the material was removed.

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Information from: Daily Sitka (Alaska) Sentinel, http://www.sitkasentinel.com/