The wife of South Korea’s imprisoned former President Yoon Suk Yeol has been arrested as investigators attempt to prosecute her with several alleged offenses such as bribery, stock manipulation, and interfering in candidate selection.

The Seoul Central District Court granted a special prosecutor’s plea for an arrest warrant late Tuesday, citing Kim Keon Hee’s risk of destroying evidence.

The arrest, which came after a Seoul central district court ruling, creates an unprecedented situation in which both members of a former presidential couple are simultaneously in custody.

The court granted the warrant citing the risk of tampering with evidence, according to Yonhap news agency. “The arrest warrant against Kim has been issued,” the prosecutor said in a brief statement.

The charges against Kim include violations of the capital market and financial investment laws, as well as political funds laws. She denies the charges.

Yoon Suk Yeol was sent back into detention in July as prosecutors investigated his failed attempt to impose martial law in December last year.

A special counsel was established after Lee Jae Myung was elected president in June to investigate 16 criminal allegations against Kim. However, Wednesday’s arrest warrant covered only three charges.