Bronze medalists mundialya in the first half secured a result, scoring two goals within three minutes.
In the second half of the meeting the Belgians strengthened their advantage, and striker Romelu Lukaku made a double.
Iceland - Belgium 0: 3.
Goals: Azar, 29 (pen. ), Lukaku, 31, 81.
Iceland: Halldoursson - Seversson, R. Sigurdsson, Ingason, Magnusson - Sigurjonsson, Bjarnason, Hallfredsson (Traustason, 83), Skulason (Palsson, 80) - G. Sigurdsson - Bodvarsson (Sigtorsson, 71).
Belgium: Courtois - Alderweireld, Company, Vertonghen - Meunier, Thielemans (Dembele, 80), Witsel, Carrasco (Chadli, 71) - Mertens, E. Azar (T. Azar, 88) - Lukaku.
Warning: Seversal.