A bomb squad was called to a South Carolina beach after Hurricane Matthew apparently unearthed old Civil War cannonballs from the sand.

Charleston County Sheriff's spokesman Maj. Eric Watson said in a news release that the cannon balls were found on Folly Beach Sunday afternoon, but bomb squad members couldn't get to it immediately because of the rising tide.

The U.S. Air Force Explosive Team was able to safely detonate the cannonballs on site once the ocean level went down.

The first shots of the Civil War were fired at nearby Fort Sumter in 1861.