Via the Sofia Echo:
Sofia's Muslim community again came under attack on June 12 2011 in an incident at the historic Banya Bashi mosque in the centre of the Bulgarian capital city.
Masked individuals stormed inside the mosque and viciously assaulted the guard of the mosque. Leaving him in a pool of blood, they then vandalised the security box, then venturing inside the house of worship.
This latest act of desecration has escalated tensions after a previous attack on the mosque on May 20.
(source)