Two helicopters collided in midair as the pilots herded deer on a ranch in Texas, according to the Federal Aviation Administration.
(MORE: 3 injured as helicopter crashes into cars at Pennsylvania fairgrounds)The two Robinson R22 helicopters crashed Wednesday morning shortly after 9 a.m. local time on a ranch near Hebbronville, Texas, about 150 miles south of San Antonio, FAA officials announced in a statement.
The conditions of the occupants have not been confirmed, officials said. Their identities were not released.
The FAA and National Transportation Safety Board are investigating the crash.
(MORE: Pilot who crashed helicopter onto NYC building 'did not know where he was': Report)Additional information was not immediately available.
ABC News' Christine Theodorou contributed to this report.