Jennifer Suhr of the United States edged a tight women's pole vault final at London 2012 to improve on her silver medal from the Beijing Olympics, BBC News said.

The 30-year-old cleared 4.75m along with Cuba's Yarisley Silva, but took the gold on countback.

Reigning champion Yelena Isinbayeva won the bronze with 4.70m.

The rain-affected final came down to a straight contest between the top pair, with neither able to vault beyond 4.80m. A failed attempt at her opening height of 4.45m by Silva saw her ultimately pushed into second place.

The result meant Russia's Isinbayeva failed in her bid to become the first woman in track and field history to win the same individual event in three straight Olympics.