World War II military ordnance was found last year in St. Mary's County.

World War II military ordnance was found last year in St. Mary's County. (Maryland Department of Natural Resources)

The U.S. Department of Defense was called Saturday afternoon to deal with a piece of unexploded ordnance found near a home in Anne Arundel County, fire officials said.

Military officials from Fort Belvoir were to investigate what appears to be decades-old ammunition, said Battalion Chief Steve Thompson, of the Anne Arundel County Fire Department.

The piece of ordnance was found off Grays Road in Harwood, he said, and is about two feet long and 10 inches in diameter. The shell appears to have been near the home for a long time, he said.

A relative of a resident of the home called authorities about the ordnance at about 3:25 p.m. Both firefighters and the Annapolis bomb squad responded, Thompson said.

steve.kilar@baltsun.com

twitter.com/stevekilar