Heidelberg (dpa / lsw) - Two people were seriously injured in a collision between two cars in Heidelberg. According to initial police investigations, a 55-year-old driver drove his vehicle into the oncoming lane on Tuesday on federal highway 37 for reasons that were previously unclear, a spokesman said. There he collided with the car of a 21-year-old. Both were taken to hospitals with serious injuries. The B37 was closed for about an hour as a result of the accident.