Dozens of horses have died in Texas and the cause is still unclear. The horses lived in Wichita and surrounding counties. Wichita County Agricultural Extension Agent David Graf is investigating the deaths and thus far has found no definitive cause. Officials are still investigating and hope to gain a better understanding of what happened to the horses.

Graf suggested that kleingrass toxicity may be to blame; though kleingrass is a good grazing forage for livestock, it can damage the liver and cause death in horses, sheep and goats. Kleingrass was found in a bale of hay on a deceased horse’s farm. Two other horses were treated for liver failure. However, samples from other deceased horses showed low toxicity, meaning kleingrass may not be responsible for all of the deaths.

In coming weeks, officials from Texas A&M and the Natural Resources Conservation Service will inspect the fields where the horses had lived in hopes of finding more clues. The investigation is ongoing.

Read more at KFDX-TV.