From Business Insider
...the army in Abharain have started firing live ammo directly at protesters, who were marching towards a hospital, which housed other injured protesters.
It's clear that unlike in Egypt -- where for the most part the Army was not violent in one direction or another -- the Bahrain royal family has control of its military, and is using it to crack down on protesters, a situation that will make things potentially more bloody.
Of course, Bahrain is a big pivot point for the region. If it falls, Saudi Arabia could conceivably go, which is why they're panicking there...