WASHINGTON (AFP) - A trio of top US senators on Tuesday warned Egypt that the risk of a "disastrous" rupture in ties had "rarely been greater" amid an escalating row over the planned trial of US pro-democracy activists.

BUENOS AIRES (AFP) - Argentina will present a formal complaint in the United Nations over Britain's "militarization" of the situation in the Falklands, President Cristina Kirchner said Tuesday.

SYDNEY, Australia (AFP) - Global mining giant BHP Billiton said Wednesday its first-half profits fell 5.5 percent to US$9.94 billion, largely due to lower commodity prices and some production constraints.

SAN FRANCISCO (AFP) - Yahoo! chairman Roy Bostock announced Monday he was stepping down from the board of the struggling Internet company along with three other directors.

WASHINGTON (AFP) - US President Barack Obama will welcome his Brazilian counterpart Dilma Rousseff to the White House on April 9 for talks on the "growing partnership" between the two nations, his office said Tuesday.