Hamburg police said on Saturday that four of the victims who had sustained life-threatening injuries were in a stable condition. Officers arrested a 39-year-old German woman at the scene of the attack, which took place at about 18:00 local time (16:00 GMT) on Friday.

Officials confirmed on Saturday nearly two dozen people were wounded, some suffering life-threatening injuries, after a woman allegedly stabbed travelers with a knife Friday afternoon at Hamburg Central Station in Germany.

Eighteen people were injured in a knife attack at the central train station in the northern German city of Hamburg on Friday, police said. Earlier, emergency services had reported 17 injuries.

A woman allegedly stabbed 17 people in a knife attack at Central Station in Hamburg, Germany, on Friday, May 23. The woman had given herself up to the police without resistance, and an investigation into the incident is ongoing.

Police said the suspected assailant was a 39-year old woman who allowed herself to be arrested without resistance.

Seventeen people were injured in a knife attack at the central train station in the northern German city of Hamburg on Friday, with four of them suffering life-threatening injuries in the incident, emergency services said.

Police in Germany say a person with a knife has injured several people at the central railway station in Hamburg.