At a building of management of security service of Ukraine (SBU) in Odessa in the morning on Sunday there was a heavy explosion, say local media. "About 04. 45 unidentified planted an Explosive device under a building of territorial administration of the security service of Ukraine ", - reports news Agency the letter of the Odessa edition " Timer ". "The explosive device was planted under the unused side entrance of the building. The power of the explosion was such that the broken Windows in the homes where people live and office spaces located two or three blocks from the explosion. In place of police work. According to unconfirmed information, the Victims and received no damage ", - stated in the message. Over the last six months in Odessa there was a series of explosions. Police all incidents classified as terrorist acts and sabotage. So, in the July explosion in the 1st cafe of Odessa, the owners of which actively support Ukrainian forces. At the beginning of July in Odessa at the entrance to the house where the headquarters of the " Defense ", there was an explosion. In June in Odessa was rocked by two loud explosions. In may an explosion occurred on the stretch station " Odessa-Peresyp-Odessa-Zastava-2 ". In the end crater with a diameter of 0. 5 meters and a depth of 0, 2 meters. Victims and received no damage. After the blast police opened a case, describing the incident as a diversion. An improvised Explosive device detonated in Odessa on March 5, in the space that belongs to the extremist " Right sector* ". No one was hurt, the explosion was qualified as a terrorist act. Before this massive explosion in Odessa occurred on February 17 in the house on Bolshaya Arnautskaya street, there were no Casualties. It was claimed that an Explosive device detonated in a basement, which houses the service centre, belonging to the leader of Odessa "Avtomaydan" Evgeny Rezvushkina, and the office of " Automaidan ". The police considered the incident as a terrorist act. * Organization, which the court accepted entered into legal force of the conclusion About destruction or ban the activities on the grounds stipulated by the Federal law "On countering extremist activity"