Breaking News Emails Get breaking news alerts and special reports. The news and stories that matter, delivered weekday mornings.

Aug. 13, 2015, 10:01 PM GMT / Updated Aug. 14, 2015, 12:51 AM GMT By Kathryn Robinson

A Texas sheriff's deputy has been fired and an investigation is underway after he forgot to take his police dog out of his patrol car on Sunday, and the dog later died, authorities said.

Latham Roldan was a seven-year veteran of the Jim Wells County Sheriff's Department and a three-year trainer to police dog Jola, the sheriff's department said.

"When he went home from work, he just left the kennel" inside the car, sheriff's Capt. Joe Martinez told NBC News. "It was a case of negligence."

Jola, a Belgian Malinois, was trapped in the car for nearly 20 hours as temperatures in Alice, Texas, soared to 99 degrees. The dog was found dead in the vehicle Monday, Martinez said.

"There's no excuses," Jim Wells County Sheriff Oscar Lopez told NBC affiliate KRIS. "There's no excuses."