Two demolition workers were injured yesterday afternoon when a stairwell collapsed at the site of an apartment building fire that left 250 residents homeless in July.

Tom McLain, first district battalion chief with the St. Louis Fire Department, said the two men were “conscious and talking” after being pulled by rescuers from the rubble at 3949 Lindell Boulevard shortly after 2 p.m.

The workers were trapped for about 20 minutes before being taken to a hospital. Their conditions were not available.

The men were working at the site where a fast-moving blaze damaged the four-story, 197-unit apartment structure on the evening of July 18.

Ahrens Contracting Inc. is the demolition contractor on site.