A patient who walked out of a Davenport hospital against medical advise was struck and killed by a car on U.S. 27 Sunday night, the Polk County Sheriff's Office said.

Investigators say Larry Strouse, 48, of Davenport had been a patient at Heart of Florida Regional Medical Center in Davenport for several days. For some reason, he removed his IV and left the hospital on foot around 6 p.m.

At 6:09 p.m., Strouse was seen on the east side of U.S. 27, about a half-mile south of the hospital. Investigators say he then ran across the northbound lanes of highway into the southbound lanes, where he was struck by a Chrysler sedan driven by Oksana Dee, 23, of Davenport.

Strouse was propelled over the hood and onto the windshield before coming to rest on the west shoulder of the roadway, about 120 feet from the point of impact. He died at the scene, deputies said.

Hospital staff had reported Strouse missing to Haines City Police around 6 p.m. Sunday, deputies said. Information about why Strouse was hospitalized has not been released.

Neither Dee nor two passengers in the Chrysler were injured.

An investigation will continue, but no criminal charges are anticipated, the sheriff's office said.