As reported by the Bismarck Tribune:
Dakota Access Pipeline protesters blocked a pipeline work yard early Saturday morning, prompting the evacuation of workers there.
Rob Keller, a spokesman for the Morton County Sheriff's Department, said around 9 a.m., the department received a phone call of 130 to 150 cars leaving the protests camps in southern Morton County and heading north on Highway 6 to Mandan.
Once they arrived in Mandan, the protesters stood and blocked the intersection of Highway 6 and Main Street, Keller said. They then headed to the work yard, on County Road 82, where DAPL has construction equipment and blocked the entrance.
A video posted on social media showed a man driving a truck at protesters in the work yard. The man driving the truck in the video also had a gun pointed at them.
Police are investigating reports of shots fired, it's yet clear who may have fired them.
DAPL workers were evacuated from the site, Keller said. No arrests were made.
There was a report of a protester being injured, he said, however it's not clear if it's severe or how it happened. (emphasis added)