MINNEAPOLIS - Newly released 911 transcripts are giving a frightening glimpse into what police officers encountered as they arrived to the scene of the Accent Signage shooting in Minneapolis nearly three weeks ago. The workplace rampage left seven people, including the gunman, dead.

The City of Minneapolis released 20 pages of 911 call transcripts, as well as the audio of police calls to emergency dispatchers as officers arrived on scene. The responding officers found victims almost immediately as they stepped inside.

"We got two down in the main entryway," one officer reported to dispatch. "We are searching the building, give us the air. This is probably going to be an active shooter, give us the air," he said.

Within minutes, police secured a perimeter, rushed in emergency personnel, and found five more victims.

In one of the first 911 calls for help, a female employee reported seeing shooter Andrew Engeldinger with a black handgun after shooting two people. She told the operator, "I saw him running around with a gun. At first I thought it was a joke, and then I saw the blood everywhere and heard the shots."

Another homeowner across the street called, telling operators, "The UPS truck driver is here and apparently he went inside the building and something happened right after he went into the building. I see 1..2..5 employees come running out the front door. One of them was running so fast she fell down. "

UPS driver Keith Basinski was one of the six people shot and killed, before gunman Andrew Engeldinger took his own life, in the building's basement after learning he was fired.

The victims also included Accent Signage owner Reuven Rahamim.

(Copyright 2012 by KARE. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.)