In what the Israel Defense Force is calling a “severe safety violation,” a 65-ton Merkava battle tank rolled across a major Israeli highway Sunday. Where was its crew? Fast asleep inside the armored vehicle.

The IDF has launched an investigation into how a tank crew from Shizafon base fell asleep inside their Merkava-4 tank and put it into reverse, winding up 600 meters from where they should have been, on the other side of the busy Route 40 highway. Luckily, o one was hurt in the incident.

The incident happened Sunday during a tank commander’s course in the Negev Desert, about 46 miles north of the resort city of Eilat, the Times of Israel reported.

Read more at Sputnik News.