Severe turbulence injures 10 on Hawaiian Airlines flight en route to Sydney

Hawaiian Airlines flight from Honolulu to Sydney experienced severe turbulence, causing injuries to passengers and flight attendants
Turbulence caused the ceiling of the plane to break open, oxygen masks to deploy, and some passengers to be thrown from their seats
Three passengers and three flight attendants required medical care for injuries including back pain
This is the second severe turbulence incident on a Hawaiian Airlines flight in the past year, with the previous one injuring 25
The sudden turbulence gave the captain no time to change course to avoid it