Coogee Beach has been closed after black ‘tar balls’ found

A popular beach has been closed after unusual ball-shaped debris washed up, leaving the local council puzzled.

A popular beach has been closed after a mysterious black balls washed ashore.

Coogee Beach in eastern Sydney will remain closed until authorities can work out what the substance is.

Coogee Beach has been closed until further after mysterious, black, ball-shaped debris was located washed along the length of the beach. Picture: Nine News

Randwick Council suspects they may be 'tar balls' which is formed when oil comes in to contact with debris and water. Picture: Nine News

The black, ball-shaped debris was found along the length of the beach on Tuesday.

Randwick Council suspects the debris may be “tar balls”, Nine News reported.

“At this stage it is unknown what the material is, however, they may be ‘tar balls’ which are formed when oil comes in to contact with debris and water, typically the result of oil spills or seepage,” the council said.

“Council is currently arranging for the material to be safely removed from the beach and is inspecting other nearby beaches.”

Samples of the balls have been collected and sent off to be investigated.

Coogee Beach is closed till further notice.

Originally published as Coogee Beach has been closed after black ‘tar balls’ found