Muslim civil rights groups across the United States are calling for Milwaukee police to investigate as a hate crime an attack on a Muslim woman who said a man beat her after demanding that she take off her hijab.

“You can't get a clearer hate crime than this,” said Janan Najeeb, president of the Milwaukee Muslim Women’s Coalition.

“There was an individual telling her to take her scarf off, ripped it off and started beating her up. This is clearly a hate crime.”

The woman, who has not been publicly identified, has said that she was walking home from a prayer service at about 6 a.m. Monday when a man got out of a car and told her to remove her hijab, or head scarf.

Then, the woman tried to pull her hijab tight to keep it on but the man threw her to the ground and began beating her.

“She's of course very shaken and also tired,” Najeeb said.

The national Council on American-Islamic Relations said on Wednesday that the attack should be investigated as a hate crime.

Following the election of Donald Trump as the president of the United States, hate crimes against Muslims in the U.S. has shown a sharp increase.

Earlier, Trump imposed a ban on a number of Muslim-majority countries for “security concerns.”