It is a rolling attack, a Mumbai-style attack.
As to the motive of the attackers it is yet unclear.
There is chaos and there is carnage.
Beyond that, reporters must sort out the usual questions:
We do not know who (or whom) yet.
We know “what” – as in shots fired and citizens down.
We know “when” the attacks started but do not know when the attacks will conclude.
Where is determined for the present moment, but not beyond.
Why? There is no good answer to “why?” when innocent citizens are gunned down in the streets.