Thai authorities have issued arrest warrants for six activists who took part in a demonstration at which students issued a 10-point call for reform of the monarchy last week, police said on Wednesday as students called more protests.

The charges against the six were not over the demands made at the protest by thousands of people at Thammasat University on Aug. 10, but for breaching internal security and measures to stop the spread of the coronavirus as well as computer crimes.

The six include Panusaya Sithijirawattankul, 21, the student who read out a manifesto demanding reform of the monarchy. They also include Anon Nampa, who made the first public call for royal reform and has also been charged over earlier protests.