A worker inspects the structure inside the 1.65-kilometer (1-mile) Tsuburano Tunnel on the Tomei Expressway in Yamakitamachi, Kanagawa Prefecture, eastern Japan, Monday, Dec. 3, 2012.

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A worker inspects the structure inside the 1.65-kilometer (1-mile) Tsuburano Tunnel on the Tomei Expressway in Yamakitamachi, Kanagawa Prefecture, eastern Japan, Monday, Dec. 3, 2012. Concrete ceiling panels fell onto moving vehicles deep inside a tunnel on another expressway in Japan Sunday, and authorities confirmed nine deaths before suspending rescue work Monday while the roof was being reinforced to prevent more collapses. (AP Photo/Kyodo News) JAPAN OUT, MANDATORY CREDIT, NO LICENSING IN CHINA, FRANCE, HONG KONG, JAPAN AND SOUTH KOREA less