MELBOURNE, Australia -- Australian authorities responded on Saturday to a reported bomb scare on flight from New Zealand to Sydney. Police said there was no threat. Air New Zealand flight 247 remained on the Sydney Airport tarmac with its passengers aboard for hours due to a bomb threat, news media reported.

There are reports of a bomb scare involving an incoming international flight at Sydney Airport. According to Seven News, the incident involves Air New Zealand flight NZ247 from Wellington to Sydney.

According to NBC News, balls of sticky black goop were first seen on Coogee Beach on Oct. 15, prompting beach closures across the area. As of Oct. 17, Sydney's famous Bondi Beach, along with Bronte, Tamarama, Gordons Bay, Clovelly, and part of Maroubra Beach, are closed until further notice as crews clean up and remove the tar balls.

Beaches in the Australian city of Sydney have reopened for swimmers after being closed earlier this week when thousands of mysterious black tar-like balls washed ashore, prompting health concerns.

Sydney’s Bondi Beach and other beaches around the Australian city were shut on Thursday as officials investigated mysterious tar balls that have washed ashore.