SEOUL, South Korea — Prosecutors on Wednesday summoned former President Park Geun-hye of South Korea for questioning in a corruption scandal, only days after she was removed from office in a historic court ruling.

Ms. Park’s presidency formally ended last Friday, when the Constitutional Court approved the National Assembly’s vote to impeach her in December.

She was the first South Korean leader ousted under popular pressure since the country’s founding president, Syngman Rhee, fled into exile in Hawaii in 1960.

Although prosecutors have identified Ms. Park as a criminal suspect accused of bribery, extortion and abuse of power in recent months, they could not indict her or even summon her by force while she was president. But now that she has become an ordinary citizen, prosecutors moved swiftly.