The Sac County Sheriff’s Office responded to a two-vehicle accident at U.S. Highway 20 and County Road M54 north of Sac City at approximately 4:12 p.m. Tuesday afternoon. According to witnesses, traffic was backed up for some time as emergency responders worked to aid those involved and clear the accident scene. Carroll Broadcasting has reached out to the Sheriff’s Office and will bring you more details as soon as the official accident report becomes available.