The human rights group, "Addameer," has expressed deep concern for the lives of four Palestinian hunger strikers as their health continues to deteriorate, a press statement by the group said. It said its lawyer, Fares Ziad, recently visited three hunger strikers - Jafar Azzidine, Yousef Yassin and Tarek Qa'adan - who have been on hunger strike for two months. All three were arrested on November 22 and were placed in administrative detention, which is a procedure that allows the Israeli military to hold detainees indefinitely on ‘secret information' without charging them or allowing them to stand trial. All three began their hunger strike on November 28 and are only drinking water, Addameer was quoted as saying by Palestine News and Information Agency "WAFA."