Police in New Delhi have arrested the editor of a news website and one of its administrators after raiding the homes of journalists working for the site, which has been critical of Prime Minister Narendra Modi and his Hindu nationalist-led government.

The arrests were made late Tuesday after some journalists associated with NewsClick were detained and their digital devices seized during extensive raids that were part of an investigation into whether it had received funds from China. NewsClick denied any financial misconduct.

Suman Nalwa, a police spokesperson, said the arrests were made under a wide-ranging anti-terrorism law. The government has used the law to stifle dissent and jail activists, journalists and critics of Modi, with some spending years in jail before going to trial. Those arrested are NewsClick’s founder and editor, Prabir Purkayastha, and its human resources chief, Amit Chakravarty.