A Dartmouth student who was missing since last Wednesday has been found dead.

Kexin Cai, 26, was last seen leaving a Lebanon store on her e-bike at 6 p.m. on May 15.

She was heading down Route 10 towards West Lebanon and was never seen alive again.

The Lebanon Police Department quickly deployed personnel to search the area. They say an extensive search continued throughout the weekend.

Police got a tip on Monday that Cai's e-bike was possibly seen at the Boston Lot Conservation Area, Thursday, or Friday morning by a passing motorist.

The search including a helicopter and K9s was concentrated in the conservation area and the adjoining Wilder Dam area.

A fisherman alerted authorities around 4 p.m. on Monday to a sighting he had along the Connecticut River in Windsor, Vt..

Local emergency services were dispatched and rescue personnel were able to retrieve a body later identified as belonging to Kexin Cai.

Police say there is no indication that there was foul play involved in her death.

"The Lebanon and Hanover communities came together with many good Samaritans requesting to help in the search," the Lebanon Police Department said in a release.

A Chinese national, Cai was a second-year doctoral student in psychological and brain sciences with a special interest in communication challenges in autism at the Ivy League school.

A school administrator called the news "devastating."

"Kexin was an exceptionally gifted and humble researcher with a genuinely sweet personality. She loved cats so much that she would sneak images of them into every poster or presentation," Jon Kull, the Dean of the Guarini School of Graduate and Advanced Studies said in an email to students.

Dartmouth planned to hold a Day for Community on Thursday in the wake of Cai's death and the death of Julia Cross, another student who died last month of a rare disease.

"They were cherished by their friends, family, and loved ones and will be deeply missed," the school said in an email to students.