The Collaborative International Dictionary of English v.0.48:

Loot \Loot\, v. t. & i. [imp. & p. p. Looted; p. pr. & vb. n.
   Looting.]
   To plunder; to carry off as plunder or a prize lawfully
   obtained by war.
   [1913 Webster]

         Looting parties . . . ransacking the houses. --L.
                                                  Oliphant.
   [1913 Webster]

WordNet (r) 3.0 (2006):

looting
    n 1: plundering during riots or in wartime [syn: looting,
         robbery]