Bulgaria police probe spate of car fires The vehicles of the officers, a husband and wife, were set afire Monday in Plovdiv, police said. The Sofia News Agency reported a car fire in the city of Varna Sunday. Witnesses said a Molotov cocktail was thrown at the vehicle from a schoolyard. Sixty car fires have been reported in the capital city of Sofia and 30 others in other communities in the past two months, police said. Investigators said they don't believe the fires have been coordinated by any single group. Many of the crimes were called "copycat" fires.