Two men critically injured in boating crash on River Murray

Two men are fighting for life in hospital following a boating crash on the River Murray near Swan Reach on Friday night.

The River Murray near Swan Reach.

A man is fighting for his life, while another is in a serious condition in hospital following a boating crash on the River Murray near Swan Reach.

The two men were flown to the Royal Adelaide Hospital after their tinny collided with another boat on Friday night.

Police received reports just before 10pm on Friday night about a small aluminium boat upturned on the Murray River about 10km upstream from Swan Reach.

The two men on board received serious injuries.

Locals say the two men, 37 and 40-years-old, were rescued by friends in a separate boat that was travelling behind them.

One remains in a critical condition while the other is in a serious but stable condition.

Police said they initially thought no other vessel was involved however after new information came to light police now believe that a crash has occurred between two boats.

Detectives from Murray Bridge are making their way to the scene to assist with the investigation along with officers from the Water Operations Unit.

Police are now investigating the circumstances surrounding the incident.