BURLINGTON, IA -- The body of a fourth missing person has been found after a boat crash on the Mississippi River in Burlington, Iowa.

The Iowa Department of Natural Resources said four bodies were found late Sunday within 100 yards of the crash site, where the river is 10 to 12 feet deep.

DNR officer Paul Kay said the victims were three men and a woman, all believed to be in their 20s. Their names have not been released, pending notification of their families.

The department said that along with the four missing, eight people were injured when two Jon boats crashed in the O'Connell Slough area of the river before 2 a.m. Saturday. One of the boats was carrying 11 people; the other had a s single passenger.

The Associated Press contributed to this report.