NAVI MUMBAI, June 19 -- A joint police convoy transporting around 160 allegedly illegal Bangladeshi immigrants to Pune's Lohegaon Airport for deportation met with an accident on Wednesday inside the Bhatan Tunnel on the Mumbai-Pune Expressway. As many as 18 policemen and 12 immigrants, were injured in the collision. The operation was coordinated by the Foreigners Regional Registration Office. The convoy was carrying 22 immigrants from Mira Bhayandar, 40 from Mumbai, 75 from Navi Mumbai, and 23 from Thane. According to sources, a trailer had overturned inside the tunnel early in the morning. At 7.30am, a hydra crane was removing the trailer. One of the convoy vehicles accidentally rammed into the crane. Subsequently, six of the 19 police vans in the convoy were involved in a multiple-vehicle collision. The injured were taken to MGM Hospital in Vashi. Vijay Mane from the Mumbai protection branch, was reportedly in critical. The immigrants, who were sitting in the back portions of the vehicles, sustained minor injuries. "The remaining convoy proceeded to Pune to complete the deportation process as scheduled," said Anchal Dalal, superintendent of police, Raigad....