Japan quake breaches the historic walls of 400-year old Kumamoto Castle

7.3 magnitude earthquake strikes southern Japan, killing at least 20 people, injuring more than 1,000 and trapping people in collapsed buildings.

Damaged Kumamoto Castle caused by earthquakes is seen in Kumamoto, southern Japan, in this photo taken by Kyodo April 16, 2016.

Damaged Kumamoto Castle caused by earthquakes is seen in Kumamoto, southern Japan, in this photo taken by Kyodo April 16, 2016.

(photo credit: REUTERS)

BySHINICHI SAOSHIRO/REUTERS

APRIL 16, 2016 11:51

Updated: APRIL 16, 2016 11:50