Jamaica's Veronica Campbell-Brown has tested positive for a banned drug and won't defend her 200m world title this year, Jamaican media reported Saturday.

The Gleaner newspaper and Television Jamaica both reported that the sprinter tested positive for the banned diuretic lasix, although an official with the Jamaica Athletics Administrative Association said the federation had been notified only that a Jamaican athlete's "A" sample had tested positive.

The JAAA official could not confirm the gender of the athlete, the substance discovered by the test nor whether the backup "B" sample had also tested positive.