The US attorney general on Monday accused the Chinese government of trying to “subvert the US judicial system” by indicting 13 Chinese nationals who allegedly worked for Beijing’s intelligence services, AFP reported.

Merrick Garland detailed three separate cases in which alleged Chinese intelligence agents harassed a Chinese citizen in the US, tried to interfere in the prosecution of a major Chinese telecommunications company (allegedly Huawei), and pressured American researchers to work for China.

These cases show that “the Chinese state has tried to interfere with the rights and freedoms of people in the United States and to undermine our judicial system that protects those rights,” Garland said at a news conference.

“The Ministry of Justice will not allow any attempt by a foreign state to undermine the rule of law on which our democracy rests,” he added.

The announcements came a day after Chinese President Xi Jinping was re-elected as head of the Chinese Communist Party and China.

Among the cases cited by Garland is one of seven Chinese accused of trying to force one of their compatriots, a resident of the United States, to return to China as part of a Beijing-led forced repatriation campaign.

They allegedly tracked and harassed a Chinese national, who US justices presented under the fictitious name of John Doe-1 to protect his anonymity, and his family as part of “Operation Foxhunt,” which included covert efforts by “repatriation groups” to forcibly foreigners to return to China.

Beijing presents the operation as an anti-corruption strategy, ensuring its services comply with international laws when traveling abroad.

The two accused were arrested in New York on Thursday.