"Early on the afternoon of 14 April, a National Guard Servicemember assigned to Operation Lone Star discharged a weapon in a border-related incident," the spokesperson said.
The incident is under investigation and more information will be made available as the investigation progresses, the spokesperson noted.
The Indiana National Guard told Sputnik that it is aware of the incident, but did not provide other details.
US Customs and Border Protection (CBP) and the Texas Department of Public Safety (DPS) declined to comment on the matter.
The Texas Governor's office did not immediately respond to Sputnik's request for comment on the matter.