BANGKOK -- A group organizing Thailand's pro-democracy protests has called on supporters to write letters to King Maha Vajiralongkorn after announcing plans for a massive rally on Sunday.
A banner on the People website posted at noon on Thursday heralded what was described as "the biggest march ever" set for Sunday afternoon. People is among several leading anti-government groups including Free Youth, Free People and the United Front of Thammasat and Demonstration demanding reform of the monarchy.
