(AP) -- Officials in Haiti say a river that has been a source of a cholera epidemic is expected to overflow following heavy rains from Hurricane Tomas.
United Nations officials say engineers were forced to let water pass through a dam on the Artibonite River on Sunday.
People living along the waterway were alerted to evacuate their families and livestock. Authorities are expected to fly over the area to look for flooding Monday.
Cholera is new to Haiti. The diarrhea and fever-causing illness has killed some 500 people and hospitalized thousands since appearing last month. Its origin has not yet been confirmed.
©2010 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.
