ST. PETERSBURG, Fla. — The Pinellas Medical Examiner confirmed Monday that a body found deep in the Weedon Island Preserve on Friday is that of missing 17-year-old Allister Samer Nasr. 

Authorities are still working to determine the cause of death of the teen.

In a news release, St. Petersburg police said, “There are no signs of trauma and no reason to suspect foul play.”

Nasr was last seen on March 1 when he left his home on a bicycle. 

The bicycle was found last week on Wednesday near Weedon Island Preserve. 

Detectives searched for him by foot and with drones, helicopter, thermal imaging and boats.