It looked like a bomb went off on Stemmons Freeway where two cars collided head-on early Friday morning. Just before 3 a.m. a wrong-way driver slammed into another vehicle on Stemmons near Market Center, northwest of downtown Dallas. The two vehicles were crushed, sending debris flying over the median and forcing police to close down Stemmons in both directions. Occupants of the two vehicles were rushed to Dallas hospitals. Their conditions are not clear, but no fatalities have been reported. Police are waiting for blood tests to help determine whether the wrong-way driver had been drinking.