Hauptbahnhof closed and crawling with police

There were cops everywhere about 2 hours ago when I was @ the Hauptbahnhof...

They had blocked off the entire area around the limo that serves seafood, as well as all the ticket counters on the north side...there was barely enough space for people to get through on the south side of the hall...

Does anyone have an idea why?

One of the flying fish had caught bird flu.

that's one idea...I even had a good look, didn't see shit... Though it looked like there might have been a suitcase next to where the schedules are...

they were still pushing people back and expanding the area when I had the last look, attempting to find out wtf was going on...

is this part of what was going on at Herzog-Wilhelm strasse?
Were loads of ambulances and police there too not long ago...

Widdy must be in town