Per this link, the mall is a huge facility. There are many well-armed cops. Looks like the mall is closed for the day. And some, a few, German print media reports are actually ysing the word "terror". Guess they didn't get the memo.
Why target Germany, though? Merkel has brought out the welcome wagon for Islamists. Is there something more they want from Merkel? Or has that ship sailed, and now it’s open season...