Why did the California Highway Patrol issue a sigalert on Highway 57 this morning?”
The California Highway Patrol issued a Sig Alert this morning after a Toyota Camry collided with a box truck on the 57 Freeway in Diamond Bar, blocking three lanes. Los Angeles County firefighters came to the scene on the southbound 57 at Diamond Bar Boulevard at 8:09 a.m. to help at least one person who was injured, said CHP Officer Francisco Villalobos. The crash brought traffic to a crawl for about 1 1/2 miles. The Sig Alert is in effect until 9:10 a.m.
