A rusty unexploded bomb 30 centimeters in length and 10cm in diameter was discovered by an expatriate on Lamma Island on Wednesday.
At 1pm, a 48-year-old Westerner named Robert found the bomb on a stone beach in front of 67 Yung Shue Wan Main Street. He reported his discovery to police, who sought help from experts from the Explosive Ordnance Disposal Bureau and sealed the area off for investigation.
It is believed that the bomb had been immersed in the sea earlier but was exposed when the tide was out, Oriental Daily reported.
Authorities determined that the bomb posed no immediate risk. They took it to the Cheung Chau Police station, HK01.com reported.
Robert told media that he discovered the bomb on Tuesday night but it was too dark at that time to have a clear look. When he returned to the site on Wednesday for a beach-cleaning activity, he saw the bomb was still there.
He said he had sent a picture of the bomb to a historian, who told him that it was very likely to have been a weapon from the World War II era.