SEOUL, South Korea — An expectant mother who visited a medical clinic in Seoul, South Korea, last month to receive a nutritional shot woke up hours later to learn she had mistakenly been given an abortion, the police said on Wednesday.

The police said they planned to ask prosecutors to indict the clinic’s doctor and a nurse on charges of inflicting accidental injury. The staff, the police said, administered anesthesia and performed an abortion on the woman, a Vietnamese citizen, who was six weeks pregnant.

The police did not identify the woman, the doctor or the nurse. There have been no arrests.

An Chan-su, a police investigator, declined to confirm local news reports that the accidental abortion took place after medical charts were mixed up and the woman was mistaken for another patient seeking an abortion after a miscarriage.

In a landmark ruling in April, South Korea’s Constitutional Court struck down a 66-year-old law that made performing an abortion a crime punishable by up to two years in prison, and gave Parliament until the end of 2020 to revise the law.