Unknown attackers launched a tear gas attack on a train in Hamburg that reports say has injured up to 50 people and led to a massive police presence at the Hamburg train station. At 6:55 pm Friday evening passengers on a train in Hamburg on the S-Bahn line 11 were subjected to a tear gas attack by two young men injuring 50 including a three-year-old girl. Paramedics and police arrived on the scene to treat the passengers of the train for various ailments including respiratory injured German paper Bild reports. The attack occurred just before the train reached Sternschanze station in the centre of Hamburg and upon arriving all passengers fled into the station to escape the gas. #Hamburg – Reizgas-Attacke von Unbekannten in S-Bahn-Waggon mit rund 50 Fahrgästen! #BahnhofSternschanze pic.twitter.com/yLjsW7yqzm — Thomas Knoop (@Thomas_BILDde) March 10, 2017 Federal police at the train station said that the perpetrators were likely two young men who had fled the scene. Rüdiger Carstens, spokesman for the federal police said, “The recordings of the surveillance cameras were secured. The investigations continue.” Less than a month ago Hamburg airport had to be partially evacuated as the result of a similar attack. In that attack, an unknown toxin was released