Three Australian navy sailors have been treated for minor injuries, after their submarine rolled on its side off the coast of Western Australia.
The crew of HMAS Collins were carrying out some routine tests on Sunday morning when the submarine was rocked heavily by a sudden swell.
Three of the boat's crew were injured, suffering cuts and bruising.
They were taken to the HMAS Sterling Base and have been treated at a medical defence centre.
A Navy spokeswoman says the vessel itself hasn't been damaged and will return to sea soon.
It's believed bad weather conditions caused the submarine to roll. australia.com