4 Killed In Separate Aircraft Crashes In Wisconsin: Officials

OSHKOSH, WI — Four people were killed and two sustained injuries in separate aircraft accidents Saturday in Wisconsin, officials said.

In one incident, a helicopter and gyrocopter collided near Oshkosh, killing two people and hurting two more. Two others were killed when a small plane crashed in a nearby lake.

A Rotorway 162F helicopter and an ELA Eclipse 10 gyrocopter collided shortly after noon at Wittman Regional Airport, authorities said. The aircraft belonged to attendees of the Experimental Aircraft Association’s annual fly-in convention in Oshkosh, but they weren't involved in the air show, the organization told the Associated Press.

Separately, a plane crashed earlier Saturday into Lake Winnebago near Oshkosh, killing two people, according to the Winnebago County Sheriff's Office.

The Federal Aviation Administration and National Transportation Safety Board are investigating both incidents, CBS News reports.

Authorities haven't publicly identified the decedents.

The Associated Press contributed to this report.