– 1986 Chernobyl explosion spread radiation across Europe  – World marks anniversary as Japan struggles with Fukushima  Ukraine marked the 25th anniversary on Tuesday of the world's worst nuclear accident at its Chernobyl power plant as Japan pressed on with efforts to control the crisis at its Fukushima plant. On April 26 1986, the No. 4

Yahoo Inc said on Monday it has bought IntoNow, a start-up that enables users to identify and share television programs with their friends, in its continuing drive to boost its social media credentials. Financial terms were not disclosed. IntoNow, which is led by Adam Cahan, a former executive with Google Inc and Viacom Inc's MTV,

BlackBerry maker Research In Motion said Russia could help development of new technologies by finding a balance between state security and innovation. Co-chief executive Jim Balsillie said on Monday the Canadian company had "ambitious plans" in Russia and offered President Dmitry Medvedev — an avid user of Apple's iPad — a new Blackberry tablet at

  Sony, a laggard in the booming tablet market, launched its first tablet computers in an ambitious attempt to grab the second spot in the market created and dominated by Apple's iPad.   The gadgets will use an operating system based on Google's Android 3.0, said Kunimasa Suzuki, deputy president of the consumer products and

Oil rose above $124 a barrel on Monday, pushed higher by an escalation of violence in the oil-producing Middle East, as well as post-election unrest in OPEC member Nigeria. Brent gained 40 cents to $124.39 a barrel by 1000 GMT. U.S. crude rose 44 cents to $112.73. Brent is again within sight of the peak

HSBC, Europe's largest bank, is to close its retail banking operation in Russia after just two years, following in the footsteps of British peer Barclays. "Following a strategic review it is clear that the strongest opportunity for HSBC in Russia lies in servicing corporate and institutional clients," Huseyin Ozkaya, chief executive at HSBC Russia, said

Nintendo will launch a successor to its aging Wii game console in 2012 as it bets on a new hit games platform to win back users lured away by rivals Microsoft and Sony, and reverse a fall in profits. The maker of the DS handheld games device, which is also facing competition from smartphone makers

Truck drivers returned to work on Monday after Shanghai took steps to a defuse a strike at China's busiest container port, leaving some drivers demanding more and setting an example of militancy that may embolden other restive workers. The strike, which began on Wednesday and disrupted shipments at the port, was a brief but telling