Man, identified as 60-year-old 'mentally confused' German national, stabs two people on a train in near Austrian-Swiss border.

A man with a knife has attacked two people on a train in Austria, reports say.

According to local police the 60-year-old suspect was brandishing a knife and injured two passengers.

A bystander reportedly wrestled the suspect to the ground and neutralized him. He was then held down until police arrived and made the arrest.

Austrian police say the attacker, a 60-year-old German national, appeared mentally confused.

The two victims are said to be seriously injured and were evacuated to the hospital after the attack: A 19-year-old man who had wounds to his stomach and back and a 17-year-old male who suffered a throat injury.

The reported attack happened in the town of Roethis, near the Austrian-Swiss border.

The attacker is currently being questioned by police.

Any connection to the train attack in Switzerland in which the attacker set a train coach on fire, eventually resulting in the death of one woman, has been ruled out.

This is a developing story