The source of the elaborate water bomb that doused the UNLV basketball team Thursday night still remained a mystery a day after the incident.

USU officials are trying to figure out how someone got into the crawl space under the floor and rigged up the homemade device, which sprayed all over the UNLV bench as the second half was about to get under way.The "bomb" consisted of a small tank inside a wooden crate with a sprinkler head and a lot of PVC pipe. Apparently TV crews laying line in the same area before the game walked right over the devices (there were two, but only one went off) and wire leading to them. The vents the water came through were just behind the UNLV bench.

USU police have a few leads and are working to find the culprits.

"It's an ongoing investigation. I don't think it will be a clandestine operation," said USU athletic director Rod Tueller. "When we find something out we'll release the information."

Tueller is leaving the investigation to the university police and any disciplinary action to the USU administration.

"We're certainly in the middle of it and if has something to do with athletics, I will be involved," said Tueller.

There was much confusion at the start of the second half when the stream of bluish-green water suddenly shot up from under the UNLV bench just as Rebel Coach Jerry Tarkanian was about to sit down (the uncanny timing of the incident led some officials to believe it was set off by remote control rather than a set timer as was originally thought). The soaking UNLV players were sent back to the locker room, along with the dry Aggie players, while the mess was cleaned up. Play was delayed for about 15 minutes.

Utah State would have had the ball at midcourt, but a technical was assessed to the Aggies and UNLV made two free throws and retained possession. The final two-point margin made those technical shots critical.

USU Coach Kohn Smith was steaming about the incident as soon as it happened and later said, "I was really ticked off. It was taking the game away from the players."

Although those close to the action could see the dye on the Vegas players warmups and knew it was no accident, the word didn't get to everybody. One local radio station reported an oxygen tank had accidently exploded and a TV station reported it as a water main break.

Even Tarkanian didn't know about the devious plot until afterward when he was told by the press. "Really? On purpose? You're kidding me," said Tark as he broke into a big grin.

Tueller, however, wasn't amused in the least as he talked about it Friday.

"I'm very serious about getting to the bottom of it all," said Tueller, who realized it could have been something more serious than colored water. "I'm really upset about it. I don't want any sort precedent set for this kind of thing."