Albany High School issued a statement to students Friday morning about the death of 16-year-old classmate Cathy Qiu.
Students were told that grief counselors would be available to those in need throughout the day, said Albany High School Principal Ted Barone.
"Obviously, it's a tragic event," said Barone. "(W)e're hoping information comes out soon about the cause of death. That will be important" to know."
The Albany Unified School District sent out a message to parents Thursday night. Authorities identified Qiu Thursday as the mysterious body that washed ashore a San Mateo Beach on Sunday. The Albany High honor student and tennis player was reported missing by her family Sept. 27.