Eastbound lanes of Interstate 8 in the East County were blocked due to a five-car crash that involved a military Humvee.
The California Highway Patrol said the Humvee rolled and hit at least one other car in a chain-reaction crash near Dunbar Lane in Alpine.
The crash happened just before 5:30 p.m., CHP said. A SigAlert was issued and all eastbound lanes were closed. All lanes were reopened by 7:30 p.m., CHP said.
Sky Ranger 7 spotted several uniformed military personnel at the scene of the crash. The Humvee and three other cars involved had to be towed away from the scene.
NBC 7's traffic map showed eastbound traffic was backed up past Lake Jennings Park Boulevard to the west in the moments after the crash.
There are no details regarding injuries at this time, according to Heartland Fire & Rescue officials.