Soldiers fired at the flash of gunpowder, at noises,anything that moved.

VOA: special.2009.09.17

Yousif said police descended on the mourners and fired tear gas, flash-bang grenades and birdshot.

CNN: Fresh clashes in Bahrain as protester is buried

Afterwards, police fired tear gas and "flash bang" grenades near the main plaza, where Occupy Wall Street protesters have been camping.

BBC: US Occupy protesters clash with police at Oakland port

The first time he fired up his double hot plate, the fuse-box door was open and he witnessed a cerulean flash and a rattail of smoke, the first of four fuses it took to fry one egg.

NEWYORKER: Idols