Remains Found in Search for Missing Virginia Teen Anjelica Hadsell

— -- Human remains have been found in a search for missing college student Anjelica "AJ" Hadsell, according to police in Norfolk, Virginia.

The remains found in Southampton County have been sent to the Chief Medical Examiner's Office to be identified and to determine the cause of death, police said.

The FBI is now involved in the investigation, police said.

Hadsell, 18, had been missing since March 2, according to the Norfolk police. She was a freshman at Longwood University in Farmville, Virginia, and was home for spring break in Norfolk when she disappeared, police said.

Two days later, Norfolk police received a tip that Hadsell had been seen on the campus of Virginia Commonwealth University, two hours away from where she was last seen by her family.

A new tip last week led police to search a pond in Carrsville, Virginia, about 40 miles away from Norfolk.

Investigators have said there is no evidence of foul play, but her family and friends have said she wouldn't disappear on purpose.

"This is not Anjelica," her friend Andre Barr told ABC News. "We all know her, we know how she would act and this is not -- this is out of character."

ABC News' Katherine Faulders contributed to this report.