An aerial view shows the damaged Aeon Mall shopping centre, where, according to local media, an explosion occurred after an earthquake with a preliminary magnitude of 7.1 struck Japan's southern Kumamoto prefecture, in Kashima Town, Kumamoto Prefecture, Japan, Tuesaday. Reuters-Yonhap

TOKYO — A "considerable number" of people have died in a shopping mall damaged by a major earthquake Tuesday in southwestern Japan, broadcaster TBS said.

Police told AFP that they could not confirm whether there were any fatalities at the mall in the town of Kashima.

Emergency services earlier said "many people" were trapped inside the building after a floor collapsed.