Identify the weapon being used in this photograph

Factual Questions
1

Here’s a frighteningly beautiful photo off the AP wire today of something exploding over Gaza. To me, it looks like a couple of giant squid monsters on a rampage. But what’s really going on here? It’s clearly an air burst of something. Flares? Cluster bombs? White phosphorus shells? What say ye, Teeming Millions?

2

Looks like flares of some sort so ground troops can see? Or not.

3

I would say that is the launch of two of the Kassam rockets they have been firing at Israel. You can make out the shape of the rocket above the fire/smoke trail.

4

Looks like white phosphorus shells detonating. They are generally used as smoke rounds but WP has a pronounced incendiary effect as well.

Here’s an (old) photo showing a WP bomb explosion:

http://en.wikipedia.org/wiki/File:USS_Alabama_(BB-8)_1921.jpg

If you do a Google image search on white phosphorus have a strong stomach as you will get a lot of images of burn victims.

5

I also believe they are smoke shells, likely the M825:
http://www.globalsecurity.org/military/systems/munitions/m825.htm

With photo:
http://op-for.com/2009/01/monday_miscellany.html

6

Thanks, Henrichek and Valgard. Looks like a particularly good angle on a pair of M825 explosion, and the extreme brightness of the second, lower explosion suggests a white phosphorus payload.