Indian tax authorities raided the BBC’s offices in New Delhi today, a journalist for the British network told AFP, weeks after it aired a documentary critical of Prime Minister Narendra Modi.

“The tax office is raiding the offices, they are confiscating all the phones,” said the journalist.

Government officials were outside the BBC offices, located in the center of the capital, to prevent people from entering or leaving them, an AFP reporter found.

“A government process is underway within the office,” said a government official, declining to name his agency.

The BBC aired a two-part documentary in January accusing Modi of ordering the police to turn a blind eye to the 2002 religious riots when he was chief minister of Gujarat state.

This wave of violence had claimed the lives of at least 1,000 people, most of whom belonged to India’s minority Muslim community.

The Indian government blocked videos and Twitter messages directly linked to the documentary, which it called “hostile propaganda and anti-India garbage” shortly after its broadcast.

Student groups have organized screenings of the documentary despite bans on their campuses, defying government efforts to block its distribution.