Federal Aviation Administration spokesman Ian Gregor in Los Angeles said the Hawker Beechcraft plane crashed into the ocean Tuesday night under unknown circumstances. 

The two left Indiana June 19 in hopes of breaking a world record and raising money for a nonprofit that builds schools in Pakistan. They planned to return home Sunday.

Plainfield Schools released the following statement to Fox59 in Indianapolis: 

“Plainfield Community School Corporation is deeply saddened to learn of the death of one of our students. Seventeen-year-old Haris Suleman completed his junior year in May and left Plainfield only days later in an attempt to fly around the world with his father. Haris’s adventurous spirit and huge heart led him to reaching for this personal goal while also seeking to raise funds and awareness for schools supported by The Citizens Foundation, a non-profit organization headquartered in Karachi, Pakistan. “

“The loss of Haris is a sobering tragedy for our school community. We extend our heartfelt sympathy to Haris’s family. We will provide information about memorial services and funeral arrangements once available. Thank you for your concern at this difficult time.”