In other news
President Barack Obama's budget request would boost tax revenues by $1.4 trillion over 10 years and slash deficits by $1.05 trillion, the Congressional Budget Office says.
Three hectares of land in Irene, Pretoria, have been made available for the development of a hotel, offices and a conference centre.
Workers on the London Underground rail network are to stage five days of strikes after talks with management over planned job losses were "wrecked".
Goldman Sachs has reported lower quarterly profits due to declines in some key trading divisions, but notched a big gain in financial advisory services.
Tens of thousands of workers have joined an escalating strike at a Chinese plant of Taiwan's Yue Yuen Industrial.
New applications for unemployment benefits held near their pre-recession levels, offering further evidence of the economy's underlying strength.
Drugmaker GlaxoSmithKline - hit by bribery claims in five countries - is to employ hundreds more doctors as it seeks to build a new sales model.
French energy giant Total has announced it has discovered oil in deep waters off the coast of Ivory Coast, constituting a "very promising result".