Updated: 8:30 p.m. | Posted: 4:40 p.m.
The Minnesota State Patrol is asking for the public's help to locate a semi-truck that may have caused a crash that killed two teen brothers from Moorhead around 9 a.m. Tuesday.
The crash killed the driver and one of the passengers and injured two others when the 2010 Dodge pickup truck rolled over in the median of Interstate 94 near Fergus Falls and landed on the on the other side of the highway.
Investigators were able to corroborate one of the survivor's accounts Wednesday, Lt. Tiffani Nielson said.
"We do have enough to state that the semi possibly came into the lane of the vehicle that rolled," she said.
The State Patrol is looking for a semi with a white trailer and a red or green cab.
Nielson said the crash wasn't a hit-and-run because the semi didn't make contact with the vehicle.
The crash killed driver Zachary Kvalvog, 18, and his brother, Connor, 14. Passenger Jimmy Morton, 18, sustained serious injuries while Mark Schwandt, 17, had non-life threatening injuries.
Josh Lee, the head boys basketball coach at Park Christian School in Moorhead, said the brothers and the rest of the school's varsity team were carpooling to a tournament in Wisconsin. Lee says Kvalvog's truck was at the back of the group of vehicles.
"We only have about 400 kids that attend our school K-12, and so we're a very tight knit family," Lee said.
"Obviously this has been a traumatic, hard loss."
Anyone with information on the semi-truck is asked to call 218-846-8244.