A semi truck fire caused a traffic backup on eastbound Interstate 90 Wednesday morning. The fire began just before 11 a.m. Wed. at the Fairview exit (Route 98) eastbound lanes. Multiple fire crews were on the scene attempting to douse the fire. Traffic was at a standstill for a short time while crews worked to clean up the scene. There is no word at this time on the cause or the status of the driver. The I-90 eastbound lanes reopened to traffic just before 1 p.m.