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A worker of Central Nippon Expressway Co. speaks to the reporters near the Sasago Tunnel where a collapse took place in Koshu, Yamanashi Prefecture, central Japan, Sunday, Dec. 2, 2012. At least seven people were feared missing Sunday after about 150 concrete panels fell from the roof of the tunnel on the main highway linking Tokyo with central Japan. (AP Photo/Kyodo News) JAPAN OUT, MANDATORY CREDIT, NO LICENSING IN CHINA, FRANCE, HONG KONG, JAPAN AND SOUTH KOREA

A worker of Central Nippon Expressway Co. speaks to the reporters near the Sasago Tunnel where a collapse took place in Koshu, Yamanashi Prefecture, central Japan, Sunday, Dec. 2, 2012. At least seven people were feared missing Sunday after about 150 concrete panels fell from the roof of the tunnel on the main highway linking Tokyo with central Japan. (AP Photo/Kyodo News) JAPAN OUT, MANDATORY CREDIT, NO LICENSING IN CHINA, FRANCE, HONG KONG, JAPAN AND SOUTH KOREA

Deadly Japan tunnel collapse

Japanese officials ordered the immediate inspection of tunnels across

the country on Dec. 3 after nine people were killed when concrete ceiling

slabs fell from the roof of a highway tunnel onto moving vehicles below.