Police in the Saudi capital Riyadh said on Monday they had arrested a woman for taking off her veil in public and posting pictures of her daring action on Twitter.
Police spokesman Fawaz al-Maiman did not name the woman but several websites identified her as Malak al-Shehri, who triggered a huge backlash on social media after posing without the hijab in a main Riyadh street last month. Reactions on Twitter included calls for her to be executed.
"Kill her and throw her corpse to the dogs," one of the tweets read. Another declared, "We want blood."
Maiman said in a statement that the police in the ultraconservative kingdom acted in line with their duty to monitor "violations of general morals".
He said the women posted a tweet of herself standing next to a popular Riyadh cafe but without wearing the Islamic headscarf that is required in Saudi society.