Voisin was wounded by shrapnel on February 21, 2013, while covering the operations of an armed opposition group in Syria's Idlib province, according to news reports. The journalist, who was hit in the head and arm, was evacuated to a Turkish hospital in the city of Antakya, where he died three days later.
News accounts did not immediately report whether the shrapnel originated from government or rebel fire, or if Voisin was targeted. Syrian government forces frequently shell rebel-held areas with indiscriminate fire.
Voisin, a French freelance photojournalist, had contributed work to several local and international publications, including Le Monde, The Guardian, and Agence France-Presse. His website chronicles his work from some of the world's most dangerous countries for journalists, including Libya, Haiti, Somalia, Brazil and Kenya.
In a statement, French President François Hollande said, "His death is a tragic reminder of the risks taken by journalists to inform our fellow citizens, regardless of the dangers."