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Indian onlookers and firefighters stand near the collapsed portion of a flyover in Kolkata on March 3, 2013. A huge portion of a flyover on the eastern side of the Indian metropolis collapsed leaving three persons injured, the flyover connects the airport with Eastern Metropolitan Bypass and the eastern and southern suburbs. As the debris fell into a canal running below the flyover, it took down a truck the driver and two others were rescued from the canal by fire-brigade personnel and locals. DIBYANGSHU SARKAR/AFP/Getty Images

Rescue workers of the Disaster Management Group conduct search operations at the site where a section of a bridge collapsed early morning in Kolkata, India, Sunday, March 3, 2013. Three persons traveling in a truck that was passing through the bridge were seriously injured in the accident. (AP Photo/Bikas Das)

Indian onlookers watch as rescue personnel search waters near the collapsed portion of the flyover in Kolkata on March 3, 2013. A huge portion of a flyover on the eastern side of the Indian metropolis collapsed leaving three persons injured, the flyover connects the airport with Eastern Metropolitan Bypass and the eastern and southern suburbs. As the debris fell into a canal running below the flyover, it took down a truck the driver and two others were rescued from the canal by fire-brigade personnel and locals. DIBYANGSHU SARKAR/AFP/Getty Images

Indian onlookers stand near the collapsed portion of the flyover in Kolkata on March 3, 2013. A huge portion of a flyover on the eastern side of the Indian metropolis collapsed leaving three persons injured, the flyover connects the airport with Eastern Metropolitan Bypass and the eastern and southern suburbs. As the debris fell into a canal running below the flyover, it took down a truck the driver and two others were rescued from the canal by fire-brigade personnel and locals. DIBYANGSHU SARKAR/AFP/Getty Images

Indian onlookers stand near the collapsed portion of the flyover in Kolkata on March 3, 2013. A huge portion of a flyover on the eastern side of the Indian metropolis collapsed leaving three persons injured, the flyover connects the airport with Eastern Metropolitan Bypass and the eastern and southern suburbs. As the debris fell into a canal running below the flyover, it took down a truck the driver and two others were rescued from the canal by fire-brigade personnel and locals. DIBYANGSHU SARKAR/AFP/Getty Images

Indian onlookers stand near the collapsed portion of the flyover in Kolkata on March 3, 2013. A huge portion of a flyover on the eastern side of the Indian metropolis collapsed leaving three persons injured, the flyover connects the airport with Eastern Metropolitan Bypass and the eastern and southern suburbs. As the debris fell into a canal running below the flyover, it took down a truck the driver and two others were rescued from the canal by fire-brigade personnel and locals. DIBYANGSHU SARKAR/AFP/Getty Images

Indian onlookers stand near the collapsed portion of the flyover in Kolkata on March 3, 2013. A huge portion of a flyover on the eastern side of the Indian metropolis collapsed leaving three persons injured, the flyover connects the airport with Eastern Metropolitan Bypass and the eastern and southern suburbs. As the debris fell into a canal running below the flyover, it took down a truck the driver and two others were rescued from the canal by fire-brigade personnel and locals. DIBYANGSHU SARKAR/AFP/Getty Images

A policeman stands near a mangled truck at the site where a section of a bridge collapsed early morning in Kolkata, India, Sunday, March 3, 2013. Three persons traveling in the truck that was passing through the bridge were seriously injured in the accident. (AP Photo/Bikas Das)

Rescue workers of the Disaster Management Group gather at the site where a section of a bridge collapsed early morning in Kolkata, India, Sunday, March 3, 2013. Three persons traveling in a truck that was passing through the bridge were seriously injured in the accident. (AP Photo/Bikas Das)

Indian onlookers stand near the collapsed portion of a flyover in Kolkata on March 3, 2013. A huge portion of a flyover on the eastern side of the Indian metropolis collapsed leaving three persons injured, the flyover connects the airport with Eastern Metropolitan Bypass and the eastern and southern suburbs. As the debris fell into a canal running below the flyover, it took down a truck the driver and two others were rescued from the canal by fire-brigade personnel and locals. DIBYANGSHU SARKAR/AFP/Getty Images