Emergency vehicles sit in front of the Rathaus, or city hall, in Ingolstadt, Germany, on Monday, Aug. 19, 2013, after a man took several hostages. Police spokesman Guenther Beck said it wasn't clear what weapons the man might have or what he wants. The incident started shortly before 9 a.m. (3 a.m. EDT), and Mr. Beck said police were in contact with the man by telephone. (AP Photo/dpa, Peter Kneffel)

Photo by: Peter Kneffel

Emergency vehicles sit in front of the Rathaus, or city hall, in Ingolstadt, Germany, on Monday, Aug. 19, 2013, after a man took several hostages. Police spokesman Guenther Beck said it wasn't clear what weapons the man might have or what he wants. The incident started shortly before 9 a.m. (3 a.m. EDT), and Mr. Beck said police were in contact with the man by telephone. (AP Photo/dpa, Peter Kneffel)