Background
A student pilot accompanied by an instructor pilot was engaged in touch-and-go landing practice.
Sequence of Events
On the approach leg, the student allowed the airspeed to diminish, leading to a stall. The aircraft touched down hard and bounced skyward. The student then applied power to execute a go-around, but did not lower the nose appropriately. The instructor attempted to introduce forward control input, yet was physically unable to counteract the student's force. A subsequent stall occurred, and the airplane impacted trees situated to the left of the runway.
Outcome
The aircraft collided with trees adjacent to the runway after the second stall. The source does not specify the extent of injuries or damage.