As you are probably aware, many camera manufacturers are based in Japan. Nikon, Canon and Sony (among others) were all affected by the catastrophic earthquake that struck Japan last week.
Below you will find links to relevant stories concerning damage to manufacturing plants and the temporary closings of certain plants, which resulted from the recent earthquake, tsunami and/or nuclear disaster in Japan.
Canon Japan Press Release – plant closings/status updates
Toshiba (CMOS sensors) plant shut down
Canon USA and Sony official statements at Popular Photography
Panasonic Lumix plant damaged with minor injuries to employees – via Amateur Photographer