In St. Petersburg, a bomb went off under a BMW car in one of the yards. This was reported to RIA Novosti by a source in the law enforcement agencies of the city.
"The day before in St. Petersburg, in the courtyard of a residential building under a BMW car owned by the CEO of one of the companies, an unidentified non-enveloped device exploded, equivalent in power to 50 grams of TNT," the source said. The car received minor damage.