WILLCOX — In the early hours of Wednesday, Interstate 10 westbound was closed due to multiple vehicle accidents around mileposts 345 to 347. The accidents, responded to by Willcox Fire and Rescue and the Arizona Department of Public Safety, involved several semi trucks and multiple injuries. Preliminary reports indicate that a semi truck initially blocked the westbound lanes, which then lead to a series of rend-end collisions. “It's under investigation,” said AZDPS spokesperson Bart Graves.