 |  | Murdoch opponent challenges UK regulator over Sky deal |  | LONDON (Reuters) - Activist group Avaaz stepped up its battle to stop Rupert Murdoch buying Sky , launching a legal challenge to the regulator's view that the pay-TV group would still be a "fit and proper" owner of a broadcasting license if the deal goes ahead. | |  |  |  | Bayer sells further stake in Covestro for 1 billion euros |  | BERLIN (Reuters) - German drugs and pesticides group Bayer said on Friday it had further reduced to just under 25 percent its holding in Covestro , the plastics producer which it demerged in 2015, by selling a 6.9 percent stake for 1 billion euros ($1.2 billion). | |  |  |  | Japan's Genki Sushi, Sushiro to merge: source |  | TOKYO (Reuters) - The owner of Japanese restaurant chain Genki Sushi Co will buy a one-third stake in bigger rival Sushiro Global Holdings Ltd from private equity firm Permira [PERM.UL], a person with direct knowledge of the deal said. | |  | |  |  | |  |  | Related Video | |  | |  | |  |  |  | Related News | |  | |  | |  |  |  |  |  | Make sense of the market with highlights of valuable financial information and reports along with compelling investment insights. Register Today |  | |  |  |  | Get a jump on the day with our early morning summary of key news developments for the US markets, as well as global market news. Register Today |  | |  | » » MORE NEWSLETTERS |  | |