RUFUS, Ore. -- A brush and grass fire caused by an RV has closed one lane of Interstate 84 near Rufus, according to the Oregon State Police. shows the highway is partially closed from milepost 114 to milepost 122 east of Biggs Junction and Rufus, Oregon. It estimates delays of 20 minutes up to two hours.

More on this story as it develops.

PHOTOS: Images of the brush fire off I-84 near Rufus, Oregon