Ocean Reef Park on Singer Island has been reopened after the discovery of a military flare and two barrels with non-toxic material.
Lifeguards originally called in the find to officials who examined the containers and determined the contents to be non-hazardous.
However, in the course of examining the barrels, a witness pointed out a separate device nearby.
Officials have determined that device to be a military-type flare with the pin still intact.
Officials called the Palm Beach County Sheriff's Office bomb squad to contain the flare.
The flare is considered separate from the containers.
None of the material is believed to be from a barge that lost containers between Cape Canaveral and Palm Beach last weekend.
Riviera Beach Fire Rescue, the Palm Beach County Sheriff's Office, the Department of Defense and Palm Beach County Fire Rescue are investigating.
Photo of flare recovered from #SingerIsland by @PBCountySheriff EOD. The beach is back open. @WPTV @ToryDunnanTV pic.twitter.com/4pAkppfaoV
— EricP_WPTV (@EricPasquarelli) December 9, 2015
@PBCountySheriff Bomb squad will examine an old military style flare w/pin attached @WPTV pic.twitter.com/ZAPAM7hGbk
— EricP_WPTV (@EricPasquarelli) December 9, 2015
Barrels that washed ashore are non-toxic. Considered debris. A military flare w/pin attached also washed up. @WPTV pic.twitter.com/YL4WoYDZ12
— EricP_WPTV (@EricPasquarelli) December 9, 2015
RBFR, PBSO, DOD, PBCFR @ Singer Island Beach for a hazmat call. Phosphorus gernade & a Hydrofluoride 55 gallon found pic.twitter.com/ch1bqxzoKu
— RIVIERA BEACH FIRE (@RBFRPIO87) December 9, 2015
The area has been safely evacuated, while crews investigate the chemicals and mitigate the cleanup of that area pic.twitter.com/SBFgl6wl7H
— RIVIERA BEACH FIRE (@RBFRPIO87) December 9, 2015
Fire rescue crews on scene at Ocean Reef Park beach. Containers washed up ashore. @WPTV More details to come pic.twitter.com/OTemYFjfxu
— EricP_WPTV (@EricPasquarelli) December 9, 2015
Scene in Riviera Beach as they look at containers washed ashore @WPTV pic.twitter.com/B3o4zK9FPZ
— Tory Dunnan (@ToryDunnanTV) December 9, 2015