Colombian 400m runner Palomeque suspended by IOC after failing drugs test

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UPDATED:

12:28 GMT, 4 August 2012

Colombian 400 metre runner Diego Palomeque has been provisionally suspended by the International Olympic Committee (IOC) after failing a drugs test.

The 18-year-old was due to run in the 400m heats on Saturday but was withdrawn following his suspension.

Suspended: Palomeque (right) failed a drugs test

The IOC have also confirmed Russian track cyclist Victoria Baranova's expulsion from London 2012.

The 22-year-old tested positive for testosterone in a sample taken on July 24 in Belarus and her departure from the Games was first confirmed by cycling's world governing body, the UCI.