POLICE are searching for a missing Princeton student who vanished from campus last week.

Lauren Blackburn, 23, was last spotted on April 19 at 6 pm near the campus library.

Investigators discovered a missing person’s phone pinging in the search area on Tuesday morning, but have yet to find the missing student, local ABC affiliate WPVI reported.

The search began at midnight on April 22 near Lake Carnegie in Princeton, where the phone was pinging.

Sonar units, drones, and K-9 units are being utilized in the water search, according to the Daily Princetonian.

It was not immediately clear if the phone belonged to Blackburn.

The 23-year-old is reportedly six feet, two inches tall, with brown hair and eyes, and weighing 170 pounds.

Blackburn was a National Merit Scholar in 2019 before he began Princeton.

“He can read a book and know everything in it,” Kate Robinson, an English teacher at Corydon Central High School, previously told WAVE.

“I’m pretty sure he has a photographic memory.”

Blackburn’s high school science teacher, Karen York, described him as “kind.”

“I have never, ever once heard him ever speak a bad word,” she said.

Now, concerned friends and family are posting on social media begging for the public’s help trying to find their loved one.

“Please come home safe Lauren,” Blackburn’s friend Maureen Davis posted on Facebook.

“He is the college student from Princeton who has been missing since Saturday. He is a part of our family and my nephew’s girlfriend, Ella’s brother.

“WE NEED YOUR HELP!!!!”