A pedestrian was airlifted to the hospital in critical condition this weekend after he was struck by multiple vehicles on Interstate 14, formerly known as 190, in Killeen.

Dispatchers received a 911 call at 11:22 p.m. Saturday. When Killeen Police officers responded, they found a 44-year-old man lying on the ground near the Trimmier Exit off-ramp. A medical helicopter then transported the victim to Baylor Scott & White Hospital in Temple.

"Officers were told the pedestrian was on the westbound side of I-14, when he was hit by numerous vehicles traveling westbound," Killeen Police Spokeswoman Ofelia Miramontez said in a press release.

On Monday, Killeen Police announced a preliminary investigation found a pickup truck driver was heading westbound, saw the pedestrian crossing the road, tried to change lanes, but still struck the victim. The victim was then struck by a compact car, and later by an unknown vehicle that fled the scene.

Nobody in either of the first two vehicles, which stopped, were injured. The pedestrian was in critical but stable condition Monday morning.

Police are asking anyone who might be able to identify the unknown vehicle that fled the scene to call Crime Stoppers at 254-526-8477 or submit a tip anonymously online by clicking here. If your tip leads to an arrest, you could be paid a cash reward of up to $1,000.