Thousands of protesters have stormed the state broadcaster and the prime minister's official compound in the Thai capital Bangkok during demonstrations on Tuesday to try to unseat the coalition government.
Journalists abandoned their studios after thousands of protesters invaded the offices.
Demonstrators also occupied compounds at the ministries of finance, agriculture and transport.
Thailand's army chief has denied speculation about an army coup to restore order, saying police can handle the situation.
Prime Minister Samak Sundaravej has given his interior minister direct control of police to end the protests.
A coalition of anti-government groups has been protesting since May demanding that Mr Sundaravej step down.