US swimmer Ryan Lochte tells Brazilian TV he is sorry, after "over-exaggerating" claims he was robbed at gunpoint while at the Rio Olympics.

South Africa's Caster Semenya wins Olympic gold in the 800m as Great Britain's Lynsey Sharp comes sixth.

Russian swimmer Yulia Efimova tells BBC Sport about the reaction to her presence at the Olympics after appealing against a doping ban.

Turkey's president says so-called Islamic State is likely to be behind a bomb attack on a Kurdish wedding in Gaziantep, as the death toll rises to 50.

Urjit Patel, a former Yale University economist with a reputation as a hawk on inflation, is appointed governor of India's central bank.

Iraq hangs 36 members of so-called Islamic State over the massacre of up to 1,700 military recruits at the former US base, Camp Speicher, in 2014.

Twelve districts of Greece have banned blood donations because of malaria, with four out of 65 recent cases contracted inside Greece, Greek media report.

US doctor Donald Henderson, who led a successful campaign to wipe out smallpox worldwide, has died at the age of 87.