About 1,000 students of Naresuan University in Phitsanulok rallied at the statue of King Naresuan, calling for democracy, on Sunday evening.
The students, wearing black, started gathering in front of the statue from 5.30pm. Many of them held banners with political hashtags and posters showing a three-finger sign.
A statement by the student council was read out saying that the gathering was to show their strong support for democracy, the rule of law, their rights and liberties under the constitution, and the monarchy.
They wanted society to know that the country's politics and administration was currently in the hands of a certain group of people wielding unjust power.
The statement expressed support for other universities in their calls for a true democracy.
Student leaders then took turns making speeches attacking Prime Minister Prayut Chan-o-cha and some other cabinet ministers. They insisted they were acting on their own and were not influenced or hired by any people from outside the university.
Police, in uniform and plainclothes, were at the scene, but did not interfere.
The rally ended about 7pm.
