HASTINGS, Fla. -- Deputies are investigating after a St. Johns County man was killed in a two-vehicle crash in Hastings Saturday evening, authorities said Sunday.

A motorcycle driven by Calvin Leroy Wesley was heading east on Chase Street about 9 p.m. when it struck a mini-van driven by 85-year-old Martha Garris of Hastings, deputies said.

Wesley, 43, was pronounced dead at the scene, according to a release from the St. Johns County Sheriff's Office. He was not wearing a helmet.

Garris was not hurt.

Speed and alcohol may have played roles in the crash, the release said.