The video was taken by the Gospel musican Daniel Jeddman from Hamburg and Ghana:
"This happened just a few meters from me! Just in front of S-Bahn Jungfernstieg! There is a knife attack! There is a baby and a mother stabbed. Please be careful if you're going to this area. Good news is suspect is heard withheld. (Post edited according to current news updates, Video was a few seconds after horrific incident). May God protect this city, Hamburg."