Shaunae Miller of the Bahamas won a dramatic gold medal in the women's 400m final at the 2016 Rio Olympics.

In a thrilling finish, Miller stumbled and then dived across the line as she edged out American world champion Allyson Felix to win in 49.44 seconds.

Felix, a four-time Olympic gold medallist, took silver in 49.51 seconds with Jamaica's Shericka Jackson third.

"The only thing I was thinking was the gold medal, and the next thing I know, I was on the ground," Miller said.

"It was just a reaction," she added. "I've never done it before. I have cuts and bruises, a few burns."

Great Britain's Christine Ohuruogu, who won Olympic gold in 2008 and silver in 2012, failed to reach the final.

Miller added: "I don't know what happened. My mind just went blank. I heard my mom screaming. When I heard her screaming, I was like, 'OK, I had to have won the race'.

A tearful Miller, who was the flagbearer for her country at the opening ceremony, told BBC Sport: "It is such an emotional moment for me. Before I came into the race I told myself, 'This is the moment I've been waiting for' and I just gave it my all."

Her coach Lance Brauman added: "She gave everything she had and her legs gave out at the line. It was not intentional."

Shaunae Miller of the Bahamas won a dramatic gold medal in the women's 400m final at the 2016 Rio Olympics.

In a thrilling finish, Miller stumbled and then dived across the line as she edged out American world champion Allyson Felix to win in 49.44 seconds.

Felix, a four-time Olympic gold medallist, took silver in 49.51 seconds with Jamaica's Shericka Jackson third.

"The only thing I was thinking was the gold medal, and the next thing I know, I was on the ground," Miller said.

"It was just a reaction," she added. "I've never done it before. I have cuts and bruises, a few burns."

Great Britain's Christine Ohuruogu, who won Olympic gold in 2008 and silver in 2012, failed to reach the final.

Miller added: "I don't know what happened. My mind just went blank. I heard my mom screaming. When I heard her screaming, I was like, 'OK, I had to have won the race'.

A tearful Miller, who was the flagbearer for her country at the opening ceremony, told BBC Sport: "It is such an emotional moment for me. Before I came into the race I told myself, 'This is the moment I've been waiting for' and I just gave it my all."

Her coach Lance Brauman added: "She gave everything she had and her legs gave out at the line. It was not intentional."