SEVERAL people were injured after a tear gas attack on a packed train in Hamburg.

Two young children, aged three and six, were treated for burning eyes and breathing problems, Bild reports.

Four adults were also treated for similar injuries following the incident at an underground stop in the Sternschanze area of the city.

Two “youths” reportedly fled the scene after spraying the toxic substance on a carriage carrying about 50 people.

The train was travelling to Hamburg Airport.

Police are pursuing the pair who carried out the attack.

“The recordings of the surveillance cameras have been obtained. The investigations continue,” Federal police spokesman Rüdiger Carstens said.

It comes after yesterday a man from the former Yugoslavia went on a rampage with an axe at Dusseldorf station injuring seven people. He was arrested by police after trying to flee by jumping down an overpass.