A skydiver has been killed in a mid-air collision with another parachutist at Wilton in Sydney's southwest.
The man, aged in his 30s, appeared to have been knocked unconscious in the collision before 10am (local time) on Saturday. He lost control of his chute and landed outside the designated zone, police said.
An ambulance spokeswoman said the man was unconscious when paramedics arrived. He died at the scene.
A 39-year-old man suffered minor injuries and was taken to Liverpool Hospital in a stable condition.
-AAP