(CNN) – A cholera outbreak in war-torn Yemen continues to spread at a rapid pace. Over 124,000 cases have been recorded as of Tuesday, with 923 people — a quarter of them children — dead in the current outbreak, the United Nations Children’s Fund said in a statement Tuesday. Cholera is an infection caused by ingestion of Vibrio cholerae bacteria in water or food contaminated with feces. Symptoms include sudden onset of watery diarrhea that can lead to death by severe dehydration. According to the World Health Organization, cholera is widespread in the Middle Eastern nation of Yemen, with the number of cases surging since late April.