NAVI MUMBAI, July 27 -- One woman died and 18 others were injured after a container trailer whose brakes failed rammed into 25 vehicles on the Mumbai-Pune Expressway on Saturday afternoon. The pile-up took place near Adoshi tunnel under the Khopoli police station. The deceased, Anita Sahadev Ekhande, 58, was a resident of Padoli village in Dharashiv district. The trailer was heading from Pune towards Mumbai, when its brakes failed. "It collided with vehicles in front of it. The impact was so great that the trailer dragged several vehicles nearly 3.5km," said superintendent of police, Raigad, Anchal Dalal. Seven vehicles were badly damaged. Volunteers from the HELP Foundation involved in the rescue operation said the deceased woman was travelling with her family in an SUV. "A 17-seater Traveller was also badly damaged in the accident. Most of the injured were inside this vehicle," said Bhakti Sathelkar, a volunteer. While 17 of the 18 injured were taken to MGM hospital, Kamothe for treatment, one of them is in a private hospital. "Prima facie, the accident was the result of brake failure. The driver was not under the influence of alcohol. The damage was major as the brakes failed while he was driving down a slope," said Dala. The trailer driver, Rajeshkumar Ramsumer Patel, 29, has been arrested. Director of MGM Hospital, Kamothe, Dr Kuldeep Raj Salgotra, said 17 patients were brought to the hospital from the accident site, the first at 3pm. One is in critical condition, on ventilator support, owing to serious head injuries. Another patient is also relatively serious and has a cervical spine fracture. Of the remaining 15 patients, two have pelvic fractures, one has a fractured collar bone, and three have sustained other fractures. The injured include 15 females and two males, including a 9-year-old....