The causes of death for three Revere women who died while vacationing in Belize was “acute pulmonary edema,” or build up of fluid in the lungs, and their bodies are scheduled to return to the United States on Thursday,

Revere officials are searching for answers after three women who were found dead on vacation in Belize.Imane Mallah, Wafae El-Arar, and Kaoutar Naqqad grew up together in Revere and were celebrating one of their birthdays when they were found dead inside their beachfront hotel room.

Hundreds of people turned out for a memorial service for three Massachusetts women who were found dead in a beachfront resort over the weekend in the Central American nation of Belize.The women — Wafae El Arar,