BBC news with Jerry Smit.

President Putin has accused Ukraine of resulting to terror after the Russian security service said it has prevented a Ukrainian plot to sabotage essential infrastructure inside the disputed territory of Crimea. Mr. Putin warned Ukraine it was playing a dangerous game. The Ukrainian foreign ministry accused him of seeking a justification to attack the country.

Russia says its forces in Syria will suspend their operations in Aleppo from tomorrow for three hours each day to allow humanitarian aid into the city. The UN emergency relief coordinator said that wasn't enough and 48-hour-ceasefirewas needed to bring in sufficient aid.

In a damning report, the US justice department has accused police in the city of Baltimore of routinely discriminating against black people and of using excessive force. It gave the example of one African American man who is stopped 30 times in four years without of being arrested or getting a caution.

The authorities in Congo have refused to renew the work permit of a prominent researcher from a human rights watch which regularly condemns abuses in the country. No reason was given. The rights group described it as a brazen attempt to muzzle reporting on the government’s crackdown on descents.

The authorities in the Colombian capital Bogota have begun demolishing a notorious district in the central of the city called the Bronx. It was a focus for drug addicts, criminals and prostitution.

At the Rio Olympics, the American Christin Armstrong has become the first cyclist win three gold medals in a row in the same discipline, her time trial victory follows golds in Beijing and London.

And a 90-year-old tortoise in Britain has been reunited with his owner after unwittingly hitching a ride on a refused lorry and ending up ata waste incinerator, there was a frantic search for the tortoise called Zumawho had caught into a bag of rubbish. BBC news.