South Korean government has ordered the daughter of Choi Soon-sil, the woman at the center of a massive presidential scandal, to turn in her passport in a bid to pressure her to return home and face an investigation, diplomatic sources said Tuesday.

Chung Yoo-ra was arrested in the northern Danish city of Aalborg on Sunday on charges of illegal stay. She is suspected of receiving favors from a Seoul-based college in the admissions process and on tests by taking advantage of her mother’s ties to the president.

South Korea’s ambassador and envoy in Denmark met the 21-year-old, who is currently in the custody of local police, and delivered the order personally to turn in her passport. Under a relevant law, her passport will be nullified within a week.

The sources said that the criminal extradition process is underway to bring back Chung to Korea, adding that the government plans to seek cooperation from the Danish authorities as soon as it receives an extradition request from the justice ministry.

Confirming the delivery of the order to Chung, the ministry said that it is ready to take steps to nullify her passport unless she turns it in by Monday.

Special prosecutors looking into the alleged corruption scandal surrounding President Park and her friend Choi had requested that Interpol put Chung on the wanted list after she declined to respond to the investigation team’s repeated summons.

At the request of prosecutors, the foreign ministry earlier mailed the order to turn in her passport to Chung’s home in South Korea but it was not delivered since she had been staying abroad.

Chung’s mother is suspected of meddling in state affairs and influence peddling. The president is also accused of conspiring with Choi.

South Korean prosecutors have said that the equestrian daughter of the friend and informal advisor of impeached President Park Geun-hye had been arrested in Denmark over the weekend on charges of staying there illegally.Denmark police arrested Choi Soon-sil’s daughter, Chung Yoo-ra. South Korea had reportedly asked Interpol to find Chung because she didn’t return home to answer questions about the massive controversy.

The arrest warrant for Chung in the influence-peddling scandal was issued in December in connection with alleged criminal interference in business.

South Korean authorities were working for her return to the country in connection with the scandal that led to the impeachment of the South Korean president on December 9 following weeks of protest in the country.

“We will request an emergency extradition of Chung, working with the special prosecutor’s office,” Lee Chul-sung, commissioner general of the Korea National Police Agency, told a media briefing in Seoul.

The two countries have an extradition treaty.

Chung is a leading athlete and a member of the group dressage equestrian event at the 2014 Asian Games.

Besides being in the news due to her family’s high-profile connection with the impeached president and for receiving special treatment from the prestigious Ewha Womans University, where her admission was subsequently cancelled, Chung is also reported to have received 2.8 million euros from Samsung.

Samsung’s J.Y Lee had in December, during a parliamentary hearing, admitted to providing Chung with a horse.

According to reports, Samsung, which sponsored the equestrian athlete, agreed last year to pay $18 million to Core Sports International GmbH, a consulting firm controlled by her mother Choi Soon-sil.

This sponsorship is now being examined by prosecutors as they try to determine whether the technology giant, which was also funding and chairing the Korea Equestrian Federation (KEF), sought favors from Choi and President Park in return for funding initiatives backed by them.

“A crucial part of our investigation is to look into why Samsung and the KEF supported Choi Soon-sil and her daughter Chung Yoo-ra and transferred funds to companies set up by Choi or involved with Choi,” an official at the special prosecutor’s team told Reuters.

Samsung’s offices have been raided twice by prosecutors but none of its officials have been charged with any wrongdoing.

Park was alleged to have worked with her longtime confidante Choi Soon-sil to pressure big businesses to make contributions to non-profit foundations backing presidential initiatives.

Choi is currently facing trial on charges of abuse of power and attempted fraud following accusations she had access to secret government documents and intervened in state affairs.

Lee Kyung-jae, a lawyer representing both Choi and Chung, said the daughter would cooperate.

“When Chung Yoo-ra returns I will ensure that she fully cooperates with the special prosecution’s investigation,” the lawyer told the Yonhap News Agency.

Embroiled in this huge controversy, Park, 64, could become South Korea’s first democratically elected leader to be forced to leave office early. South Korea’s constitutional court has six months to uphold or overturn the impeachment.

Until then, she continues to formally be president but stripped of her powers, which have been handed to the prime minister, a presidential appointee.

Whatever the court decides, the scandal has already put recurring complicity between big business and government in South Korea under intense scrutiny.

“We created a miracle on the streets,” said You Jong-il, a professor of macroeconomics and development policy in Sejong City, referring to the huge, peaceful street protests demanding Park’s resignation.

“But we are still very worried about whether we will really be able to change Korean society and Korean politics.”

The beleaguered president has, meanwhile, denied wrongdoing but apologised for negligence in her ties.

At a press conference on Sunday, she claimed the accusations against her are fabricated and false.

“Rumours, stories, and broadcasts have been distorted, and false information has been getting out of hand,” she said during a meeting with reporters.

And referring to Park’s hastily called press conference, chairwoman Choo Mi-ae of the main opposition Democratic Party of Korea (DPK), said, “She is such a weird President.”

“Rather than appealing to the media in a clumsy fashion to avoid impeachment, she should face the independent counsel’s questioning.”

Bae Jong-chan, the chief director of political pollster Research and Research, also said Park’s denials are unlikely to help in any way.

“In terms of timing and content, the people will not accept the President’s denials,” he said.