Pangyo: Police were searching for explosives at Kakao Corp.'s office in Pangyo, south of Seoul, on Wednesday after another bomb threat was reported, authorities said.

According to Yonhap News Agency, the threat was posted on the company's customer service website at 7:04 p.m., similar to one made two days earlier. On Monday, a person who identified himself as a high school dropout posted two threats on the site, claiming he had planted a homemade bomb in the building. He also demanded the company wire him money worth 10 billion won (US$6.75 million). Police searched the building but found no explosives at that time.

On Wednesday evening, the operator of KakaoTalk evacuated employees for safety, as some 40 police officers were dispatched to search the premises. Police said they have not yet determined whether the person who made Wednesday's threat is the same individual from Monday.