Read more on this story at the website of CNN affilate WDTN.

(CNN) -- Sheriff's deputy Suzanne Hopper was shot and killed at a trailer park in western Ohio, Clark County Sheriff Gene Kelly said.

Hopper was investigating reports of gunfire in the area Saturday, Kelly said.

"Our deputy never had the opportunity to return fire or take cover," Kelly said. A second law enforcement officer also was shot at the Enon Beach trailer park in suburban Springfield, Ohio. His condition is serious, but he is expected to survive, Kelly said.

Video from CNN affiliate WDTN shows the second law enforcement officer being shot. He falls to the ground and rolls before other officers help him get out of the line of fire. The unidentified suspect was shot and killed, Kelly said.

Kelly praised Hopper as an outstanding deputy. He said she was married and the mother of two children. "This is the worst day in my 24 years as the sheriff of Clark County," Kelly said Saturday, his voice breaking with emotion. "It's a terrible tragedy for this community."