City officials have closed South O’Brien Street in Seymour to semitrailers due to a primary sanitary line collapse, according to a city news release.

Regular motor traffic is still permitted in the area.

Semitrailers will not be permitted past Polly Building Supply, 1335 South O’Brien Street, just south of the railroad.

The Seymour Water Pollution Control is on the scene to fix the collapse, and signage will be placed at Tipton and South O’Brien streets.