Ibtihaj Muhammad, an Olympic fencer for Team USA, has revealed that she was held at an airport by U.S. Customs and Border Protection late last year without explanation.

Muhammad, a U.S. citizen and the first American to compete in an Olympics wearing a hijab, told the website PopSugar on Tuesday that authorities detained her for about two hours.

“I don’t know why. I can’t tell you why it happened to me, but I know that I’m Muslim. I have an Arabic name,” she said. “And even though I represent Team USA and I have that Olympic hardware, it doesn’t change how you look and how people perceive you.”

Muhammad, a native of Maplewood, New Jersey, won bronze in the women’s team sabre event at 2016 Olympic games. The victory made her the first female Muslim American to medal for Team USA.

Todd Warshaw via Getty Images Fencer Ibtihaj Muhammad says she was detained for two hours by customs in the U.S.

Muhammad attempted to describe her emotions following the incident.

“It’s really hard. My human response is to cry because I was so sad and upset and disheartened — and just disappointed,” she said. “At the same time, I’m one of those people who feels like I have to be strong for those people who may not be able to find that strength. I feel like I have to speak up for those people whose voices go unheard.”

The Trump administration’s travel ban has been put on hold by a federal judge after a chaotic rollout and protests at airports across the country.

Muhammad’s comments were made following an appearance at the MAKERS conference. The fencer appeared with gymnast Gabby Douglas for a conversation about empowerment, representation and athleticism.

UPDATE ― Monday, 12:21 p.m.: On Saturday, Muhammad thanked those who supported her since she first discussed the incident and said she would continue to fight for people affected by “profiling & bigotry.”

Thanks to all who reached out regarding the December incident at customs. I will continue be a voice for all impacted by profiling & bigotry — Ibtihaj Muhammad (@IbtihajMuhammad) February 11, 2017