Prominent Egyptian Human Rights Activist Arrested Egyptian police on Wednesday briefly detained a prominent human rights activist who only weeks earlier had been released from prison, her lawyer said. Mahienour el-Masry was arrested in Alexandria with four others, including her lawyer Mohammed Ramadan, following a protest in the coastal city of Alexandria. They were picked up walking down a bridge long after the protest was finished. Ramadan said they were questioned informally by a state security officer about the protest and who organized it, but were let go. No charges were pressed. Earlier in the day in Cairo, police firing tear gas quickly dispersed dozens of demonstrators near Tahrir Square trying to protest the military-backed government. At least 43 protesters were arrested, according to a security official, speaking on condition of anonymity because he was not authorized to brief journalists. The protesters, who were largely non-Islamists, wanted to commemorate the third anniversary of one of the most brutal confrontations with security forces since the country's 2011 uprising. The November 2011 clashes left nearly 50 dead and came to be known as the Mohammed Mahmoud Battle, named after the street where they took place. El-Masry was among dozens of activists convicted this year under a draconian law that bans protests without prior police approval. She was sentenced to six months in prison but was released in September pending appeal. Last month, she received the Ludovic Trarieux Human Rights Award while on hunger strike in prison. Rights groups say dozens of prisoners from across the political spectrum are on hunger strike to protest ill-treatment and lack of due process. Thousands have been arrested over the past year in a sweeping crackdown on dissent. Mona Seif and Laila Soueif, the mother and sister of two jailed pro-democracy activists, ended a 76-day hunger strike in solidarity with the prisoners on Wednesday. Seif's brother Alaa Abdel-Fattah, a symbol of Egypt's 2011 uprising, is currently on retrial for a 15-year sentence for violating the protest law. Her sister Sanaa was sentenced to three years under the law. Associated Press writer Sarah El Deeb contributed to this report.