You might have heard the term "jackknifing" with regards to semi-trucks, especially when they're in accidents. What is jackknifing, and how does it happen?

Video footage captured by a dash cam and released by the sheriff's office shows the truck, a 1996 International Harvester semi tractor-trailer combination driven by Robert Thomas Jewett ...

Part of I-15 was closed on Tuesday after a semi-truck crashed into a tractor that was driving in the shoulder.

A semi-truck crashed into the back of a farm tractor on Tuesday, April 15, around 2 p.m. on the Northbound side of I-15 near ...

Following a six-month investigation by the Leesburg Police Department, a Loudoun County grand jury this week indicted a ...

The highway in both directions reopened around 4:15 p.m. Tuesday, according to the Minnesota Department of Transportation. A ...

A semi tractor-trailer collision with a Canadian Pacific Kansas City Railroad train east of Sleepy Eye Friday resulted in ...

Traffic has been slowed on northbound lanes of Interstate 15 in Box Elder County after a semi slammed into the back of a farm tractor driving on the shoulder.Th ...

An MBTA commuter rail train ran into a tractor-trailer and pushed it down the track in Canton on Wednesday, injuring a train ...

The driver of a semi-truck was exiting I-86 and lost control on the on ramp of I-90 West around 9:30 a.m. Tuesday morning.

Authorities say that an International Harvester semi tractor-trailer going west on U.S. Highway 14 was trying to turn into a ...

KALAMAZOO COUNTY - A semi-tractor trailer crashed into a car that was ... when it was struck by the westbound semi-truck. The car sustained heavy damage and came to a stop on the highway.