Live updates: Japan earthquake; Many people trapped in collapsed shopping mall

Many people are trapped inside a shopping mall that partially collapsed in an explosion after a large 7.1-magnitude earthquake struck the Japanese city of Kumamoto on Tuesday, according to Japan’s public broadcaster NHK.

It is unclear how many people were trapped inside when the second floor of the building collapsed, NHK reported, citing fire officials. About 50 people were injured in the earthquake, NHK reported.

The earthquake struck the city of Kumamoto, about 55 miles (90 kilometers) east of Nagasaki in southern Japan, on Tuesday afternoon local time, causing a highway bridge to buckle, and at least one other building to collapse.

In their initial estimate, local police said nine people were unaccounted for but Japanese Prime Minister Sanae Takaichi stressed to reporters the number of casualties and extent of the damage was unclear and still being assessed, Reuters reported.