Hamm (dpa / lnw) - Two women were seriously injured in a collision between two cars in Hamm. A 26-year-old man wanted to change his vehicle to the left lane on Monday evening and overlooked a car driving in this lane, according to the Hamm police. The collision threw him against a street lamp. The 23-year-old driver and her 22-year-old passenger were taken to the hospital with serious injuries.