U.S. Olympic swimming gold medalist Klete Keller was part of a group that broke into the U.S. Capitol in Washington DC last week.

According to the New York Times, the swimmer's former teammates and coaches identified him from pictures and videos circulating in the media.

Keller won two Olympic gold medals for his message trips.

Both teams also included sport legend Michael Phelps.

NOW says Keller appeared in a video released by a conservative media called Townhall.

Keller appears in the video as part of a group that clashed with police in the Capitol’s round hall, the Rotunda.

Several former teammates and coaches said they identified Keller in a video about his size and clothing.

Keller wore a U.S. Olympic team jacket that read “USA” on both his back and sleeves.

The man's bearded face is also shown in the video, as a green scarf-like one hung around his neck.

The video will appear in the Twitter embedding below.

Keller appears in the video at 0:13, 0:15 and 0:20.

NOW, according to NOW, only a few of those who identified Keller in the video were surprised by his presence in the riot.

His recently deleted social media accounts were full of messages defending Trump in recent years.

Keller has not been seen in any video involved in the violence.

However, if the authorities confirm his presence in the Capitol, he may face legal liability.

Keller, 38, was involved in three Olympics.

He won his gold medal at the Athens Olympics in 2004 and Beijing in 2008. Both came from a 4x200 message trip.

He also won silver at the Sydney Olympics in 2000 for the same trip.

Keller has two personal Olympic medals, both bronze.

They came from the 400-meter freestyle from Sydney and Athens.

The highlight of Keller’s career was perhaps the anchor part of the Athens Olympics ’journey.

He had only come third a few days earlier in the 400-meter distance, but managed to beat the Australian Ian Thrope, who won that distance, by bringing gold to the United States.