By Express News ServiceKOCHI: The Kochi police have arrested three persons who were allegedly behind a spree of recent thefts across the city and neighbouring districts. The arrested persons were identified as Sethuraj, 52, of Aroor, Biju, 43, of Nattakam, Kottayam and Abin, 36, of Kanjiramattom. They were also involved in the theft of vehicles including a car and a motorcycle. During investigation, we also found that they were involved in the theft of a car at Karikkamuri in the city. They used to sell the stolen goods in the black market..