MISSOULA, Mont. -

Montana Highway Patrol troopers are asking drivers to be mindful of driving conditions after an RV trailer crash backed up traffic for several hours Saturday morning in Missoula.

It happened around 9:10 a.m. in the west bound lane of I-90, just past the Reserve Street exit.

When NBC Montana got there, one lane of traffic was still blocked, as crews tried to figure out how to remove the flipped truck and RV.

NBC Montana was told that the trailer began to fishtail and the truck rolled over on the driver’s side and struck a guard rail.

Though there wasn't a determined cause, troopers asked NBC Montana to remind people about the weather.

"The weather is changing so plan accordingly. Roads are wet, oils are going to be coming out of the roadway as it rains, visibility is going to be limited with spring water. Make sure you don't drink and drive and always wear a seat belt," said State Trooper Rich Salois.

One man was driving the vehicle. NBC Montana was told he was wearing a seatbelt and no injuries were reported.