At least 11 people, mostly children, have been stabbed in a park near Tokyo, according to a Japanese broadcaster.
In Kawasaki, Japan, eight children and three adults have been knifed during the rampage at 7.45am today (11.45pm yesterday BST), Japanese broadcaster NKH reported.
Other Japanese media said the number of victims was as high as 16, and some are believed to have suffered serious injuries.
The children are believed to have been elementary school students.
Officers were called to a stabbing at a park in the city, about 9 miles (14 kilometers) southwest of downtown Tokyo.
A suspect is thought to have stabbed himself and is now seriously injured, according to Kyodo.
More to follow.