Nathan Law, a prominent Hong Kong pro-democracy activist living in exile in the UK, was denied entry to Singapore upon arrival on Saturday, despite having a valid visa. Law, 32, was detained at the border for four hours before being placed on a flight back to San Francisco, his initial departure point. He had traveled to Singapore to attend a private, invitation-only conference but was not provided with a reason for the denial. Law speculated that the decision may have been politically motivated, raising concerns about potential external influences, including the People’s Republic of China (PRC). Singapore’s immigration and home affairs offices have yet to comment on the incident. Law, who fled Hong Kong in 2020 following the imposition of China’s national security law, was granted asylum in the UK in 2021. Hong Kong authorities have offered a HK$1 million reward for information leading to his arrest. This incident is not the first time Singapore has taken action against Hong Kong activists; in 2019, a Singaporean activist was fined for hosting an online forum featuring Joshua Wong. Singapore maintains an extradition treaty with Hong Kong, adding complexity to the situation.