Rescue workers and policeman gather alongside emergency services vehicles on the road leading to the entrance of the collapsed Sasago tunnel on the Chuo expressway in Koshu city, Yamanashi prefecture, some 80-kilometres west of Tokyo on December 2, 2012. At least seven people are missing after concrete ceiling panels along a section of highway tunnel collapsed in Japan on December 2. AFP PHOTO / Yoshikazu TSUNO (Photo credit should read YOSHIKAZU TSUNO/AFP/Getty Images)
