YARNELL, Ariz. (AP) — The 19 firefighters killed Sunday in Arizona were part of an elite crew known for working on the front lines of region's worst fires, including two this season that came before the team descended on the erratic fire that claimed their lives.

All but one member of the Prescott-based Hotshot crew died in what was the deadliest wildfire for firefighters in the U.S. in decades.

Prescott Fire Chief Dan Fraijo said the 19, whose names had not been released, were a part of the city's fire department.

City of Prescott: Granite Mountain Hotshots

Before the fire near Yarnell, the group — one of 13 Arizona Hotshot crews — had been profiled in local media last year as they prepared for the fire season and this year as they took on a blaze near Prescott earlier this month.

In this 2012 photo provided by the Cronkite News, the Granite Mountain Hotshot crew clears a fire line through the forest. On Sunday, June 30, 2013, 19 members of the Prescott, Ariz.-based crew were killed in the deadliest wildfire involving firefighters in the U.S. for at least 30 years. The firefighters were forced to deploy their emergency fire shelters - tent-like structures meant to shield firefighters from flames and heat - when they were caught near the central Arizona town of Yarnell, according to a state forestry spokesman. (AP Photo/Cronkite News, Connor Radnovich)

Read more: 19 Firefighters Die Battling Arizona Fire