Hong Kong authorities have declined to comment on reports that an activist wanted by the city’s national security police could face deportation to China after being arrested in Thailand for allegedly overstaying her visa.

Responding to media queries about concerns that wanted activist Zhang Xinyan could be transferred to China, the Security Bureau said on Monday that it would not comment on news reports about law enforcement actions in other jurisdictions.

“Endangering national security is an extremely serious crime… no fugitive should harbour the illusion that they can evade criminal liability by fleeing Hong Kong,” the bureau said in a statement.

Zhang, 54, is wanted by national security police for allegedly committing subversion, a crime under Article 23 – also known as Hong Kong’s homegrown national security law.

NGO Human Rights Watch (HRW) said on Saturday that Zhang could face deportation from Thailand. She is now being held at the Suan Phlu Immigration Detention Centre in Bangkok.

Zhang holds refugee status issued by the United Nations High Commissioner for Refugees (UNHCR), the NGO said.

According to media reports, overseas activist group the Hong Kong Parliament said she had overstayed her visa in Thailand.

Hong Kong and Thailand do not have any extradition agreements, although the transfer of fugitives can still be arranged. In February, a 62-year-old man accused in a murder case nearly 37 years ago was arrested in Thailand and extradited to Hong Kong.

HRW senior Thailand adviser Sunai Phasuk said sending Zhang to Hong Kong would put her in “grave danger.”

“Thai authorities should do the right thing by immediately releasing her and ensuring that she is not put in harm’s way,” he said.

34 activists wanted

Zhang is among a group of 19 activists named in a round of arrest warrants issued in July 2025, with bounties between HK$200,000 and HK$1 million.

Authorities cited their involvement from February to June 2025 in the “Hong Kong Parliament,” a group of overseas activists who held unofficial polls outside the city to form a shadow legislature to “pursue the ideal of Hong Kong people ruling Hong Kong.”

According to the Hong Kong Parliament’s YouTube channel, Zhang ran for a seat in the shadow legislature earlier that year.

According to the police force’s notices, Zhang and the others wanted for their involvement in the Hong Kong Parliament have a view to achieve self-determination and subvert state power.

In total, 34 people are wanted under the national security law on suspicion of committing offences including subversion, inciting secession and colluding with foreign forces.

Some of them have bounties of HK$1 million on their heads, including former pro-democracy lawmakers Ted Hui, Dennis Kwok and Nathan Law.

Activists Anna Kwok and Frances Hui, as well as political commentator Elmer Yuen, who is accused of launching a “referendum” to form the Hong Kong Parliament, are also among those targeted with million-dollar bounties.