American sprinter Justin Gatlin has said sorry for previous doping offences, according to his agent Renaldo Nehemiah.
Watch a compilation of the funniest moments from the 2015 World Championships in Beijing.
Ten deals that could define deadline day
Manchester City sign midfielder Kevin de Bruyne from Wolfsburg on a six-year contract for a club-record fee of £55m.
Notting Hill transformed into riot of colour and sound for carnival
Nasa's New Horizons spacecraft has a new target to aim for following its historic flyby of Pluto.
Details of Scottish public spending plans for next year are to be delayed by several months.
Former Olympic champion Darren Campbell says the GB men's relay team should have their funding cut after their latest failure.
Pretenders star Chrissie Hynde comes under fire for comments in an interview suggesting it can be a woman's fault if she is raped.
British neurologist and acclaimed author Oliver Sacks dies at the age of 82.
Italian energy group Eni says it has found one of the world's largest natural gas fields off Egypt's coast.
Great Britain's quartets both win 4x400m relay bronze as the team end the World Championships with seven medals.
Reading Festival organisers confirm that DJ Evian Christ won't be playing his Reading set on Sunday.
An American hiker missing for nine days in California's rugged Sierra Nevada region has been found alive.
Russia's President Vladimir Putin and Prime Minister Dmitry Medvedev are pictured working out and sharing breakfast at Mr Putin's summer residence.
Watch Great Britain's quartet of Rabah Yousif, Delanno Williams, Jarryd Dunn and Martyn Rooney win bronze in the men's 4x400m relay.
Day of the Jackal author Frederick Forsyth reveals he was working for MI6 for more than 20 years.
The number of viewers watching the opening episode of this year's X Factor series has fallen by well over one million, in comparison to last year.
Manchester United goalkeeper Victor Valdes's proposed transfer to Turkish side Besiktas falls through.
Author Frederick Forsyth reveals in his autobiography that he used to undertake work for MI6.