WASHINGTON - The White House said on Wednesday that Iran's test of an upgraded missile undermines its insistence of peaceful intentions and will be looked upon seriously by the world.

At a time when the international community has offered Iran opportunities to begin to build trust and confidence, Iran's missile tests only undermine Iran's claims of peaceful intentions, White House spokesman Mike Hammer said.

Such actions will increase the seriousness and resolve of the international community to hold Iran accountable for its continued defiance of its international obligations on its nuclear program, he said.

(Editing by Eric Beech)