Call it the case of the eco-friendly robbers.

Three University of Tennessee players are under arrest after they attempted to rob patrons of a local convenience store and then sped off in a brand-new Toyota Prius.

Police in Knoxville, Tenn., charged the 18-year-old players – Janzen Jackson, Mike Edwards and Nu'Keese Richardson – as well as a female companion with attempted robbery, the Knoxville News Sentinel reported.

According to police, it all happened around 1:43 a.m. on Thursday at a Pilot store, when two of the players, wearing black hoodies, apparently approached their victims' not-very-sustainable car, a 1998 Hyundai Elantra. As one player brandished a gun, another demanded money from three men in the car, who in turn, showed their empty wallets. “We ain’t got nothing but a cheeseburger,” one victim recalled. “But they didn’t take that.”

Apparently disappointed, the players then got into their hybrid car, a 2010 Toyota Prius, and sped off. But they didn’t get far, and police stopped the car a short distance away. When they searched the Prius, they found an air-powered pellet pistol under the rear seat, as well as the black hoodies. They also found marijuana paraphernalia in the glove compartment, and drugs in the female accomplice’s pocket.

In a statement, University of Tennessee athletic director Mike Hamilton said: "At this time we are currently evaluating the circumstances surrounding an incident involving Mike Edwards, Janzen Jackson and Nu'Keese Richardson … Any decisions or comments regarding their status will not be made until the evaluations are complete."

Police did not say why the players targeted the other trio of young men. Don’t take this too seriously, but want to know our guess? They didn’t like the other guys’ gas-guzzling wheels.