Australian author Yassmin Abdel-Magied says she has been deported from the US.
In a series of tweets, Ms Abdel-Magied said she was put back on a plane after arriving at Minneapolis airport ahead of an appearance at an April 18 event in New York called The M Word: No Country for Young Muslim Women.
The controversial activist, who moved from Australia to the UK in 2017, said US authorities cancelled her visa and took her passport and phone.
The ABC has approached Ms Abdel-Magied for comment.
More to come.