A bomb has exploded in a 15-storey housing block in the Danube city of Ruse late Friday night.
The Bratsigovo block, located in the Ruse Rodina District was shaken by the blast that came from the second floor. The bomb had been left at the doorstep of an apartment, but no one was injured
All the windows of the block have been smashed from the blast, several doors have been damaged and the electricity is down. Police sealed off the area, but they are still unable to give any conclusions.
The second floor of the block housed an elderly woman and several vacated flats, reports claim.