The Black May (Thai: พฤษภาทมิฬ; RTGS: Phruetsapha Thamin), also known as the "Bloody May", was mass protests, close with a crackdown on protestors by security forces and polices in Bangkok from 17-20 May 1992, protesting of more than 200,000 people led by Chamlong Srimuang caused by extending of military regime of Suchinda Kraprayoon, the 1991 Thai coup d'état leader. An estimated 52 to 100 protesters were killed, 696 were injured, and 175 had "disappeared", it had not been concluded until today. Shortly, Suchinda regime received sweeping amnesty, signed by Bhumibol Adulyadej.