Cordons have been lifted after the London Eye and Waterloo Pier were evacuated following the reported discovery of a World War-era bomb.

A spokesman for Scotland Yard has reportedly confirmed authorites have found a bomb from World War I or II in the Thames near the tourist hotspot.

People on the London Eye were told to evacuate immediately.

Police cordoned off the area, but the barriers have since been lifted.

A tourist reportedly spotted the bomb and called the police.

A Metropolitan Police spokesman told Metro, "Police were called at 10:30hrs on Sunday, 25 June, by a member of the public reporting suspected WW1 or WW2 ordnance in the foreshore on the River Thames near to the London Eye."

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One Twitter user posted that she had been asked to disembark the London Eye ten minutes after the discovery was found.

"So we barely made it on the #londoneye before everyone was evacuated. News, anyone?"

The official Thames Clipper service twitter account announced that the London Eye Pier had been re-opened after an hour, and apologised for the inconvenience.

It said the boat service would resume as per the timetable.