One person was injured in a shooting Wednesday along the embattled road leading to the Freeport gold and copper mine in Papua.

Nurhabri, a deputy spokesman for the Papua Police, said someone opened fire on a bus full of Freeport employees at around 11 a.m. local time. Contrary to early reports, no-one was killed in the attack, he added.

The injured person is being treated in a hospital, said Nurhabri. He would not confirm the victim's nationality.

At least a dozen people have been killed or wounded in shootings along the road since July 11. Seventeen people were detained as suspects on Tuesday.

It is not yet clear who is behind the shootings. Analysts have pointed to a range of possible perpetrators, from local separatists to rogue soldiers or groups trained by the military.