Authorities are investigating a serious crash outside of Watford City, ND - where a semi-truck crashed through a rural school.  The accident killed 1 and injured 17 - including students.

According to the North Dakota Highway Patrol, the accident was at the intersection of ND Highways 23 and 73 (commonly known as "Johnson Corner").  A semi truck lost control due to a car running a stop sign, which sent the semi up a hill, through a fence, careening off a school bus, into a pickup, and through the wall of the school. The driver of the car involved in the accident was killed - none of the injuries to those in the school were serious.

See more photos of the damage done here