I would argue most UFO sightings are nothing more than space junk or aircraft we don't immediately understand. However, there was a UFO encounter in Wyoming this year that defies that explanation. A witness saw a bright object that suddenly shot straight up into the sky.
WHP Troopers pursued the truck east on Interstate 80 towards Wamsutter, Wyoming. The driver fled from law enforcement at speeds near 100 miles per hour. The driver was observed to cross into opposite lanes of traffic on the Interstate at times, before exiting the roadway.