Some students at Thailand's Thammasat University posed with cardboard cutouts of well-known critics of the monarchy on Saturday in a protest as King Maha Vajiralongkorn was to present degrees amid growing calls for royal reform. Youth and student-led demonstrations that began in July by demanding the ousting of former junta leader Prayuth Chan-ocha as prime minister have increasingly called for curbs on the king's powers, breaking a longstanding taboo. State broadcaster Thai PBS quoted a source as saying only around half of this year's 9,600 Thammasat graduates joined rehearsals that are essential for those attending the degree ceremony.