Local reports said two vehicles collided in Hoi.
The details of the crash are still unclear.
Photos purported to show the incident seen by Kaniva News on social media showed men lying face upwards on the grass near the scene of the collision.
Some had been covered and lay on blankets while others were laid at the back of a Police pick up van.
Meanwhile, a 20-year-old Fua’amotu man died in hospital after a car crash in Tofoa on Wednesday morning.
Police have put the road toll for 2017 at 6 – down from 18 in 2016