AUBURN, Ala. -- Police say they have several leads but have made no arrests in the slaying of Auburn University student Lauren Burk.

Auburn Assistant Police Chief Thomas Dawson told a news conference Thursday that a task force including FBI agents has been formed. He says investigators are closer to solving the homicide than previously.

He would not comment on who may have been questioned or if there was a surveillance camera in the parking lot that may assist investigators.

A $10,000 reward has been offered for information about the murder of the Walton High School graduate.

Burk was found shot and mortally wounded Tuesday night on a road a few miles north of the Alabama university.

Police said about 9:00 p.m. they responded to reports of an injured female on Alabama Highway 147. When they arrived, they found Lauren Burk, 18, suffering from a single gunshot wound. The Auburn freshman was taken to the East Alabama Medical Center where she later died.

SLIDESHOW: Lauren Burk Photos

About 30 minutes after police found Burk they discovered her 2001 black Honda Civic on fire in a campus parking lot.

Auburn Police Capt. Tom Stofer said the death was being investigated as a homicide.

"We have not named a suspect and are still investigating leads," Stofer said, adding that officials are remaining tightlipped because of the circumstances of Burk's death.

"As soon as we know more we might release it, but what information we have now we're holding it close to our chest," he said.

Alabama Governor Bob Riley announced the $10,000 reward in the case Wednesday.

Burk, a member of Delta Gamma sorority, graduated last year from Walton High School in Marietta.

Students at Walton High School Wednesday told Channel 2's Ross Cavitt the school was devastated.

"Everyone's devastated," said student Chelsea Rowson. "The whole school's talking about it and nobody really knows what happened so it's really depressing."

"It's a horrible thing that happened, so it's a tough thing for the school. We have a close-knit community feeling here so it's a hard thing for us to endure when we lose somebody," said Walton High student Zack Hogue.

Auburn officials in a statement on the school's web site said they are increasing campus security. "Auburn Police Division and Auburn University officials are taking all necessary precautions, including increasing police presence, to ensure the safety of our students and employees," the statement reads. "Meanwhile, students should be careful not just on campus, but within the larger community, and be alert at all times."

READ: Statement On Case From Auburn Officials

Several parents who have children at Auburn told Channel 2 they were furious the school did not put out a campus-wide alert. It's an alert system parents like Felecia Caballero subscribe to. "Oh, it makes me sick to my stomach because, of course, I'm not going to bring her home but at the same time I want her to be protected and if they have a system in place to let an alert go out -- use it."

Auburn officials said because the murder happened north of campus they didn't deem that there was an immediate danger to the campus community.

Auburn President Jay Gogue, who was out of town Wednesday, released a statement: "We are so saddened by this situation, words simply aren't adequate. This is a close-knit community that rarely experiences such a tragedy."

On a Facebook page dedicated to Lauren, Ansley Wright wrote, "Lauren had such a bright and beautiful soul with a hunger for a happy and loving life. I know her happiness will be carried on in the hearts of everyone who ever knew Lauren."

Blair Haskins wrote, "Lauren was so beautiful inside and out. She certainly touched each and every person that knew her and she will never be forgotten."

An on-campus prayer vigil for Burk was held by her friends, and a memorial is being planned by her sorority, Delta Gamma.

There are two services planned this weekend for Lauren. The memorial service is scheduled for Saturday at 5 p.m. at Johnson Ferry Baptist Church. The funeral will be Sunday at 5:30 at Temple Kol Emeth.

SLIDESHOW: Vigil For Lauren Burk