A bear in Fukushima (a city in north-eastern Japan) has injured four people and escaped from an electronics factory where it had been cornered, apparently by unlatching a window and pushing it open on its own. Authorities also reported the animal was observed turning on a water tap with its paws before the overnight escape. "We believe it to be extremely intelligent," Fukushima Mayor Yuki Baba said, as a search for the bear continues.