A South by Southwest film festival volunteer has been sacked and organisers have apologised after an US Olympic fencing star was asked to remove her headscarf in order to obtain a pass.
Registration official Amin Simms said it was "an insensitive request" and against the festival's policy to ask Ibtihaj Muhammad to remove her hijab at the event in Austin, Texas.
Sabre fencer Ms Muhammad, 30, could not immediately be reached for comment.
Ms Simms said festival organisers were embarrassed by the situation and apologised to Ms Muhammad.
The fencer will be competing for the US at the Olympics in Rio de Janeiro this summer.
South by Southwest is a major festival of film, interactive media, and music
Only two days before, Ms Muhammad had spoken out against Donald Trump's wil rhetoric about Muslims in the US presidential campaign.
Donald Trump's most controversial quotes
Donald Trump's most controversial quotes
1/14 On Isis:
"Some of the candidates, they went in and didn’t know the air conditioner didn’t work and sweated like dogs, and they didn’t know the room was too big because they didn’t have anybody there. How are they going to beat ISIS?"
2/14 On immigration:
"I will build a great wall — and nobody builds walls better than me, believe me —and I’ll build them very inexpensively. I will build a great, great wall on our southern border, and I will make Mexico pay for that wall. Mark my words."
3/14 On Free Trade:
"Free trade is terrible. Free trade can be wonderful if you have smart people. But we have stupid people."
PAUL J. RICHARDS | AFP | Getty Images
4/14 On Mexicans:
"When Mexico sends its people, they’re not sending their best. They’re sending people that have lots of problems. They’re bringing drugs. They’re bringing crime. They’re rapists."
5/14 On China:
"I just sold an apartment for $15 million to somebody from China. Am I supposed to dislike them?... I love China. The biggest bank in the world is from China. You know where their United States headquarters is located? In this building, in Trump Tower."
6/14 On work:
"If you're interested in 'balancing' work and pleasure, stop trying to balance them. Instead make your work more pleasurable."
7/14 On success:
"What separates the winners from the losers is how a person reacts to each new twist of fate."
8/14 On life:
"Everything in life is luck."
9/14 On ambition:
"You have to think anyway, so why not think big?"
10/14 On his opponents:
"Bush is totally in favour of Common Core. I don't see how he can possibly get the nomination. He's weak on immigration. He's in favour of Common Core. How the hell can you vote for this guy? You just can't do it."
11/14 On Obamacare:
"You have to be hit by a tractor, literally, a tractor, to use it, because the deductibles are so high. It's virtually useless. And remember the $5 billion web site?... I have so many web sites, I have them all over the place. I hire people, they do a web site. It costs me $3."
12/14 On Barack Obama:
"Obama is going to be out playing golf. He might be on one of my courses. I would invite him. I have the best courses in the world. I have one right next to the White House."
13/14 On himself:
"Love him or hate him, Trump is a man who is certain about what he wants and sets out to get it, no holds barred. Women find his power almost as much of a turn-on as his money."
14/14 On America:
"The American Dream is dead. But if I get elected president I will bring it back bigger and better and stronger than ever before and we will make America great again."
The U.S. presidential hopeful proposed in December to ban Muslims from entering the country following the deadly shootings in San Bernardino, California, by two Muslims who authorities said were radicalized.
"I feel like I owe it to people who look like me to speak out," Muhammad told reporters on Wednesday. "When I hear someone say something like, 'We're going to send Muslims back to their countries,' I say, 'Well, I'm American. Where am I going to go?"
Muhammad says she has watched the US presidential race with trepidation, worried that "fear-mongering" about Muslims is setting a perilous precedent.
She is frequently confronted by anti-Muslim "trolls" on social media, whose messages she promptly deletes.
But she says she also gets hundreds of messages of support each day, including from young Muslim girls whom she has inspired.
"I'm hoping to change the image that people may have of Muslim women," Muhammad says.