On Monday, February 26, 2018, at 7:45 a.m., SFPD on routine patrol discovered a traffic crash near 54th Street North and Cliff Avenue. Preliminary investigation suggests a tractor trailer was eastbound on 54th Street North and failed to stop for a red light on Cliff Avenue. The semi struck a northbound sedan, then struck an oncoming pickup. The semi then lodged in the wall of a local business. The semi driver was taken to the hospital for observation. No other serious injuries were reported on scene. Three vehicles were towed away. The investigation is ongoing.