Hetherington worked with Sebastian Junger on 'Restrepo,' which won the Grand Jury Prize for Documentaries at the Sundance Film Festival in 2010 and aired on the National Geographic Channel.
Hetherington and Junger traveled to Afghanistan's Korengal Valley to spend a year with the Second Platoon, a besieged squadron that dubbed their stronghold Outpost Restrepo in honor of their fallen comrade, PFC Juan Restrepo.
According to reports, award-winning photojournalist Chris Hondros, right, was one of three photographers working alongside Hetherington and has been gravely wounded. A Washington Post reporter on the scene told his newspaper that a piece of shrapnel hit Hondros in the forehead and passed through the back of his head. Hondros was reportedly in a coma at a medical center located near the front lines.
UPDATED (5:55 p.m.): A representative of Hondros' employer, Getty Images, called his family home in Fayetteville this afternoon and told his mother he had died of his wounds.
Since then, Getty has said they are unsure of whether Hondros has died or if he is still clinging to life in a Misurata hospital.
UPDATED (6:07 p.m.): The New York Times reports that Hondros spent several hours in a coma and then died after 10 p.m. Libya time. The Times sources Andre Liohn, a colleague who was at the triage center where Hondros was treated.
Paul Woolverton, a reporter for the Fayetteville Observer and friend, was at the house with Hondros' mother when the calls came. Hondros worked at his hometown paper after graduating from N.C. State, first as an intern and then as a staff photographer.
Woolverton recounted how his friend moved to New York to follow his dream of becoming a war corespondent. It was an ambition that would take him to some of the world's most troubled and dangerous destinations — Bosnia, Afghanistan, Iraq.
"When it came to photography, he gave it everything," Woolverton said a short time later. "You can tell with some people, who are really go-getters, that they are going to go far."
This photo gallery shows the images Hondros captured in Libya in the days -- and hours -- before he was injured.
You can also isten to an interview with Hondros on WUNC's The State of Things from 2009.
-Michael Biesecker contributed to this report.