Drugs cheats are increasingly using small doses of banned substances that are undetectable within a matter of hours, a senior anti-doping chief has warned.

Olympic 100m champion Usain Bolt has escaped unharmed from a minor road accident in Jamaica, according to reports.

Police have arrested a 20-year-old man in connection with the killing of former heavyweight boxing champion Trevor Berbick, who was bludgeoned and left to die in a church courtyard next to his family’s home in a rural Jamaican hamlet.

Watford striker Marlon King has been thrown out of the Jamaica squad ahead of Saturday’s international against England.

Foreigners, some guarded by US Marines, were fleeing Haiti in droves today, as looting erupted in the capital and pressure grew for an international intervention and for President Jean-Bertrand Aristide to step down.