Police said they arrested an elderly woman on Friday for her suspected involvement in a poisoning case that killed an 86-year-old woman and left four others in critical condition.
Six elderly women lost consciousness and were rushed to a nearby hospital for treatment after sharing a soft drink at a community center in the southeastern city of Sangju on Tuesday.
The 86-year-old woman died a day later and a 65-year-old woman regained consciousness, but the other four are still in critical condition.
Police said traces of insecticide were detected in the soft drink bottle, which had a cap from a health tonic on it when the incident took place.
Police also said they found a capless bottle of the health tonic near the house of the suspect.
Still, the suspect denied her involvement, police said, without releasing any personal details on the woman. (Yonhap)
