UPDATE: Early yesterday morning a semi-truck slammed into detached garages of an apartment complex in Wellington, killing the driver. 51-year-old Donald Butterfield of Hill City, South Dakota, swerved off the right side of northbound I-25 ending at Wellington Villages. According to Colorado State Patrol, it appeared the semi did not brake leading CSP to speculate either a medical issue or falling asleep at the wheel are possible causes of the crash.

An early morning accident has killed the driver of a semi-truck in Wellington, who died
after crashing into a building. According to the Larimer County Sheriff's Department, the accident happened at 4:10 a.m. near the intersection of East Frontage Road and Crittenton Lane, which is just off of northbound Interstate 25.

The cause of the crash is not known at this time.

Source KUSA