Thai police have summoned five organisers of student-led protests against the government, saying they had violated a coronavirus emergency decree forbidding large gatherings.
Among those called for questioning was human rights lawyer Anon Nampa, who on Monday had demanded reforms of Thailand's powerful monarchy, a highly sensitive topic.
There have been near-daily, student-led rallies around Thailand since mid July that have demanded the resignation of Prime Minister Prayuth Chan-ocha and amendments to a military-drafted constitution they say maintains army influence over the political system.
The five organisers were "summoned for questioning and to hear the charge of breaching the emergency decree," police lieutenant colonel Athich Donnanchai, deputy director of Nanglerng police, told Reuters.
Asked about his summons, Anon in a text message said the decree "is a law to gag and stop activism".
The government last month said the emergency decree in place since March would only be used as a measure against the coronavirus and from August onwards would not be used to prevent political rallies.
Six protest leaders or political activists in two different provinces were summoned last month for breaching the emergency decree, among other alleged offences.
Anon was separately the subject of an official complaint on Wednesday that asked police to take action against him for breaches of the emergency decree and of the constitution, concerning his remarks about the monarchy.
Defaming the monarchy is punishable by up to 15 years in prison under Thailand's strict lese majeste law, which Anon had also criticised.
Australian Associated Press