COLORADO SPRINGS, Colo. -

The first official day of winter on Wednesday brought the second snowstorm in three days to southern Colorado, causing challenges for drivers in the region.

Around 9 p.m., Colorado Springs police closed eastbound Austin Bluffs Parkway at Nevada Avenue. Vehicles had a difficult time making it up the steep hill that passes the University of Colorado-Colorado Springs. An officer at the scene said police were waiting for sand trucks to treat the hill.

At about the same time, a multi-vehicle crash was reported on eastbound Interstate 25 at the Fillmore Street exit. The crash slowed traffic on the highway but there was no report of injuries.

Problems also were reported on Hancock Avenue between Pikes Peak Avenue and Fountain Boulevard. Drivers reported traffic backups and slick conditions.

Colorado Springs went on accident alert Wednesday night. Under the alert, drivers involved in accidents the don't involve injuries, alcohol or drugs have 72 hours to file a report with police.