New explosion at Japan earthquake, tsunami-hit nuclear complex

LATEST: Another explosion has been reported at the stricken Fukushima nuclear complex as Japan scrambles to avert a meltdown in the wake of Friday's tsunami disaster.

Japan's nuclear safety agency said an explosion had been heard at the No.2 reactor, which earlier had its fuel rods exposed sparking fears of a meltdown, at the Fukushima Daiichi facility.