Supporters of ousted Egyptian president Mohamed Morsi refused to leave their sit-in demonstration on Sunday, even though dozens were killed in clashes on Saturday—and an interior minister warned that the protesters will be dispersed “soon.” The health ministry has estimated that 78 people were killed, although doctors at the scene put the number closer to 100. The government has denied opening fire on Saturday, saying only tear gas was used. Meanwhile, Interior Minister Mohammed Ibrahim said the protesters should “come to their senses” and leave, since a lawsuit has been filed by residents near the mosque for their removal. Saturday’s clashes appear to have been started after the pro-Morsi supporters attempted to extend their protest site’s barricades, causing a response from security forces.