Hong Kong publisher Jimmy Lai was found guilty on Tuesday on two fraud charges related to lease violations, the latest in a series of prosecutions apparently aimed at punishing him for his past activism.

Lai was arrested during a crackdown on the pro-democracy movement following widespread protests in 2019 and under the city’s sweeping Beijing-imposed National Security Law. He is already serving a 20-month sentence for his role in unauthorised assemblies.

His media company, Next Digital, published the now-shuttered Apple Daily, Hong Kong’s last pro-democracy newspaper. Lai also faces collusion charges under the National Security Law and a separate sedition charge. His former colleague, Wong Wai-keung, was also convicted on Tuesday on a single charge of fraud. Lai and two former executives at his company were charged with fraud for subletting part of the office space to a secretarial firm, which was also controlled by Lai, between 2016 and 2020.

Their move allegedly violated lease agreements with the Hong Kong Science and Technology Parks Corp. The second fraud count was for letting the same firm use the media outlet’s office space in an alleged breach of lease agreements from 1998 and 2015.