The dead have been identified as Bangladeshi Md Jahangir Alam Fazlor Rahman, in his 30s, and Indonesian Kesmat, 46.
Another deceased has been identified as Tan Tuck Choi, 51, who died on the way to the Sultanah Hajah Kalsom Hospital in Tanah Rata, due to a heart attack.
Meanwhile, Ho Kin Way, 38, has been rushed to the Raja Permaisuri Bainun Hospital for treatment after he injured himself while making his escape.
Cameron Highlands police chief Deputy Superintendent Wan Mohd Zahari Wan Busu said the search and rescue team was still looking for a 17-year-old Indonesian girl.
He said the incident happened at 1am when water from the Sultan Abu Bakar Dam in Ringlet was released after it breached the danger level.
He said the dam water had to be released to prevent the dam from bursting following continuous rain since 7pm yesterday.