The bodies of two Tampa teenagers were discovered Thursday morning on a roadside in Duval County.

Angelia Mangum, 19, and Tjhisha Ball, 18, were found about 1 a.m., according to law enforcement. A witness told Jacksonville news station WJAX the teenagers were bound with zip ties and lying on top of one another. "Two witnesses were driving by and they saw bodies and they called 911," Sgt. T.K. Waters told news station WJXT. Officers were dispatched to Sisson Drive, near the intersection of Main Street North and Clark Road.

Investigators suspect foul play and are trying to determine the causes of death.