Authorities are searching for the suspect vehicle in a hit-and-run crash that killed a pregnant woman and her unborn baby Sunday night in Edinburg. 

The auto-pedestrian crash happened at about 9:35 p.m. on North Alamo Road, South of 17 1/2 road in Edinburg, according to Maria Montalvo, a spokesperson for the Texas Department of Public Safety. 

Two women, one being eight months pregnant, were standing by their vehicle pouring gas when a pick-up truck traveling southbound struck both women and fled the scene, according to a news release. 

Both women were taken to local hospitals. 

Lorena Perez, 18, of Edinburg was pronounced dead at the hospital. According to a news release, medical professionals administered an emergency C-section to save Perez's unborn child, but with no success. 

The other woman has been released from the hospital, Montalvo said.

Perez's family is offering a $2,500 reward for information that might lead to a suspect. 

"Do the right thing and turn yourself in," said Perez's aunt, Letty Flores. "Just turn yourself in. Give us closure because you've taken a lot from us. You've destroyed us." 

Troopers are searching for the suspect vehicle, described as a light brown or gold 2007-2013 Chevrolet Silverado. The vehicle has significant front damage on the passenger side, with a broken front right bumper-headlamp and broken passenger-side mirror.

Anyone with information on the crash can contact DPS at 956-565-7600.