Policemen stand in front of the building where an explosion injured at least 22 people in the western German city of Cologne. It is still no clear who is behind the attack. Photo by AFP
A bomb packed with nails exploded in a shopping street Wednesday, injuring 22 people, police said. Authorities said they had no immediate evidence of a terrorist attack.The blast shortly before 4 p.m. spewed broken glass and debris along the street in the Muelheim neighborhood, a Turkish area of family shops and three-story residential buildings. Twisted carpenter's nails littered the street, leading police to conclude that they were part of an explosive device. A wrecked bicycle lay in front of the two most heavily damaged shops, prompting speculation that the bomb might have been on it. Police said in the hours after the blast that they had no suspects or motive.