6 killed in Lanka helicopter crash 

At least six people were killed and 12 people on board were injured in a Sri Lankan Air Force helicopter crash on Friday.

The crash took place during a graduation ceremony, plunging into a reservoir at the Maduru Oya national park, nearly 300 kilometers (187 miles) east of Colombo. 

Those killed included four special forces commandos and two Air Force gunners.

The survivors were admitted to hospital.

After the crash, the graduation ceremony was called off and an investigation into the cause of the incident was launched.