Dozens injured after explosion at restaurant in northern Japan

Japanese police say more than 40 people have been injured in an explosion at a restaurant in northern Japan.
The blast occurred in Toyohira Ward in Sapporo, the capital city of Japan’s northern main island of Hokkaido. Police say 41 people were injured, most of them mildly, though one is in serious condition. They are being treated at nearby hospitals.
Television pictures showed the restaurant in flames.
There was no immediate word on the cause of the blast, which local media said caused…