Fifteen people, including eight primary school children, were injured in a suspected stabbing by a man at a park in Japan's Kawasaki, south of Tokyo, on Tuesday morning, Japan's national broadcaster NHK reported. The police said that two adults and one child are without vital signs as a result of the attack. The suspect, likely in his 40s to 50s, reportedly began slashing at people waiting at a bus stop. The man in the stabbing rampage has been taken into custody, with police saying that the attacker himself has sustained serious injuries to his shoulder and is unconscious. Police have retrieved two knives from the scene of the attack.