Dozens of U.S. service members in Kuwait suffered serious injuries, including burns, brain trauma and shrapnel wounds, sources say

An Iranian drone attack in Kuwait that killed six U.S. service members in the early hours of the war with Iran was more severe than has previously been revealed, with dozens suffering injuries including brain trauma, shrapnel wounds and burns, multiple sources told CBS News. At least one required the amputation of a limb.  In:

An Iranian drone attack in Kuwait that killed six U.S. service members in the early hours of the war with Iran was more severe than has previously been revealed, with dozens suffering injuries including brain trauma, shrapnel wounds and burns, multiple sources told CBS News. At least one required the amputation of a limb. 

Sources described a grim and chaotic scene in the aftermath of the strike on a tactical operations center at the Shuaiba port outside Kuwait City on March 1. Smoke quickly filled the building, making it difficult to rescue those inside. 

More than 30 military members remained in hospitals Tuesday night with battle injuries from the Kuwait attack — one at Brooke Army Medical Center in San Antonio, 12 at Walter Reed Medical Center in suburban Washington, D.C., and about 25 at Landstuhl Regional Medical Center in Germany, sources said. 

Of those, about 20 arrived on a C-17 military transport aircraft at Landstuhl on Tuesday with injuries the military designated as "urgent" and requiring evacuation, including traumatic brain injuries, memory loss and concussions, three of the sources said. 

More than 100 medical personnel were sent to Landstuhl to assist, one of the sources said.