Two more automobiles have been set on fire overnight in Bulgaria's capital Sofia, the Interior Ministry reported Wednesday morning.

One, a Seat, was in Sofia's Lyulin district and the other one – a Mercedes, in the Druzhba district, which is a long distance from Lyulin. The second car belongs to a person with criminal record.

With the last two cases, the total number of car arsons in Bulgaria is inching to 60, while in recent days similar incidents spread to other cities and towns around the country.

A total of three suspects have been detained by police authorities in Sofia in relation with the arson cases.

Yuliyan Kovachki, 29, was arrested last Friday – it was revealed that he knew the majority of his victims and committed the arsons over anger from being unemployed in the last two years. He admitted to 12 arson cases, but had been indicted for 5 over lack of evidence. In Court, however, he claimed innocence. In addition to being unemployed it was reported that he was an orphan and often abused alcohol. He told magistrates that the cars began burning on their own when he was walking near them,

The authorities did not establish a link between Kovachki and Vladislav Nikolov AKA "Kukata" (The Hook), 33, who was detained Tuesday, again as a suspect in the arsons. Nikolov, who also has a long rap sheet, was left Friday by the Sofia District Court under permanent detention.

The last suspect was arrested overnight Saturday in Sofia. Tests showed he had been under the influence of alcohol at the time of the arrest.

The police say that the arsons were committed by several groups with different motives and some have been Kovachki's copycats.