The Jamaicans have smashed the 4x100 men's relay world record.

Usain Bolt completed an Olympics gold medal sweep — a back-to-back triple for him — with a blistering final leg. Their time of 36.84 seconds destroyed the world record of 37.04.

The Jamaicans beat the Americans, who set a national mark in finishing second.

After the relay, Bolt argued to be allowed to keep the baton but an Olympic official refused. As he waved off the official in disappointment, the crowd booed.

— Jenna Fryer — Twitter http://twitter.com/jennafryer

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EDITOR'S NOTE — "Eyes on London" shows you the Olympics through the eyes of Associated Press journalists across the 2012 Olympic city and around the world. Follow them on Twitter where available with the handles listed after each item.