Authorities have warned beachgoers and tourists to avoid touching moon jellyfish after around 20 to 30 were found floating near the surface and washed ashore along the beach at Siam Bay on Racha Yai in Phuket.

The alert was issued after the Upper Andaman Marine and Coastal Resources Research Centre was notified by officials from the Racha Islands protected area management unit.

The jellyfish were identified as moon jellyfish, or Aurelia sp., a common species whose venom is considered mild and not life-threatening. However, officials stressed that contact can still trigger red rashes and skin irritation, particularly in people who are more sensitive to the sting.

The discovery was reported from Siam Bay on Racha Yai, where the jellyfish were seen drifting on the water surface and stranded along the shoreline. Officials urged visitors not to panic, but said direct contact should be avoided for safety reasons.

Although moon jellyfish are not regarded as deadly, the Department of Marine and Coastal Resources warned that their sting should not be dismissed. Exposure may still lead to itching, irritation and other abnormal symptoms, especially in those who are sensitive to jellyfish venom.

Anyone who develops unusual sympt...