BBC News with Jerry Smith.
The U.S. Republican presidential candidate, Donald Trump, says he's now unshackled and free to fight for America in the way he sees fit. He was responding to senior Republicans distancing themselves from him, following the publication of lewd comments he made about women. In a series of Tweets, Mr. Trump said Republicans were coming at him from more sides, and that their disloyalty was harder to fight than the Democrats.
There's been an attack on a Shiite Muslim shrine in the Afghan capital, Kabul. At least fourteen people are dead. Many more have been taken to local hospitals. The shrine at Cutais Hafkey was packed with people marking assurer, one of the most important days in the Shiite calendar.
The White House has said President Obama will look at a number of ways of responding to, what it believes was, Russian hacking of Democratic Party computers. The White House Spokesman said the response would be proportionate, but might not be made public. The Obama administration believes Russian hackers may be trying to influence the outcome in November's election.
The Head of Security in the Brazilian state of Rio de Janeiro Suzei Biochami , has resigned, after nearly ten years in the post. It follows a rise in violence in recent weeks. On Monday, there was a high-profile clash between police and suspected drug dealers.
President Obama, a self-confessed space nerd, has announced new partnerships with private firms to help to get humans to Mars by the 2030s. In a blog for CNN, Mr. Obama said he was excited to review work with commercial partners to build new habitats designed to sustain and transport astronauts on long-duration space missions.