Hundreds of monks and nuns from Gede and Se monasteries, and the Mani nunnery, staged a sit-in in Ngaba on Feb. 14.Eight or nine monasteries and nunneries were involved in the protest.Monks staged the sit-in because the authorities never accounted for the whereabouts of the many Tibetans who were detained in March 2008.Nuns and children and the elderly joined in the sit-in.The protesters ,surrounded by armed police with guns, had dispersed by the end of the day
Three people were detained .
Police threw a security cordon around the town, blocking all nearby roads.