Unfortunately, no. At least seven people are missing, some bodies have already been removed. More info here: http://news.sky.com/story/1019392/japan-bodies-found-after-tunnel-collapse
Sad. I imagine a fire in tunnel would be certain death due to the fumes and lack of air after awhile.
Most times when I’m in a tunnel or on a bridge I think “what if it ‘broke’ right now.” Soon followed by the thought of “They build them strong...they’re safe...”.