Concern is growing for four Tibetan women detained for protesting against the Covid lockdowns in Kham [Ch: Sichuan], reports Radio Free Asia, who quote their local sources as saying that the reason for their arrests, and their whereabouts, are still unknown. The four, who were arrested earlier this month, are Zamkar, Kelsang Dolma, Dechen and Delha, and are believed to be held somewhere in Kardze.