Egyptian rights lawyers say security forces have rounded up hundreds of people following small but rare anti-government protests.
The protests broke out in several Egyptian cities including the capital, Cairo, over the weekend, calling for President Abdel-Fattah el-Sissi to step down.
All protests were quickly broken up by police. But they marked a startling eruption of street unrest, which has been almost completely silenced the past years by draconian measures imposed under el-Sissi.
Lawyers Malek Adly and Khaled el-Masry said Monday security forces had arrested at least 400 people in Cairo and elsewhere across the country.
El-Masry says prosecutors have questioned at least 220 people, over claims that they took part in activities of an outlawed group, a reference to the Muslim Brotherhood group, and disseminating false news.