Officials announced the 72-hour national dry law Sunday after detecting alcohol poisoning cases in several parts of the country . NEW : Interior Province : The drinking water contained a ` ` potent poison '' NEW : A province official says the alcohol was in unlabeled bottles . Officials announce a 72-hour national dry law . 21 deaths are reported in Los Rios province .
NEW : Interior Province : The drinking water contained a ` ` potent poison '' NEW : A province official says the alcohol was in unlabeled bottles . Officials announce a 72-hour national dry law . 21 deaths are reported in Los Rios province .