There was a very large first responder presence in a residential area of Buffalo Grove. At about 5:30 p.m., the Buffalo Grove Fire Department responded to a report of a person in a hole in the front yard of a home in the 1000 block of Aspen Drive, officials said. They were told the trapped person was buried, unconscious and not breathing.
At one point, a mutual aid call went out, asking for assistance from several area fire departments to help in the rescue.
"There are literally 50 vehicles here of all differ sorts from all different suburbs," said Tom Perris, resident.
The male individual was pulled out of the trench at about 6:35 p.m. before being placed on a stretcher and loaded into an ambulance. He was transported to Northwest Community Hospital in an unknown condition.
WATCH: Chopper 7HD captures dramatic moments after north suburban trench collapse
Chopper 7HD captures dramatic rescue from suburban trench collapse
ABC7 saw rescue workers working frantically to try to free that individual, digging in what appears to be the front yard of a home.
It appears sewer line work was being done in the Strathmore subdivision. Loved ones of the person trapped could only watch helplessly.
"I did see a lady. She was very distraught and crying, upset and looking for her son," Perris said. "We're very hopeful that he's OK."