Yemeni-Americans Bring Protest to Central Park South About 20 demonstrators stationed themselves on Thursday morning opposite the Ritz-Carlton New York on Central Park South, where the Yemeni President Ali Abdullah Saleh was said to be staying. They met to protest his trip to New York City for medical treatment and a deal he received that granted him immunity from prosecution for what have been called crimes against protesters during uprisings last year. The rally, complete with chants and bloody images on placards, was organized by a group known as the Yemeni American Coalition for Change. "We are greatly dissatisfied that the U.S. chose to side with a dictator," said Summer Nasser, a member of the coalition. Mr. Saleh arrived in the United States on Saturday to be treated for injuries, including burns, that he sustained when a bomb exploded in the mosque of the presidential palace last June. Whether Mr. Saleh was staying at the hotel has not been confirmed. "We won't be commenting on the president's private affairs," a spokesman for the Yemeni government wrote in an e-mail. But a spokesman for the coalition, Ibraham Qatabi, told reporters that Mr. Saleh's location had been "confirmed from people who visited him" at the hotel. New York City police officers stood guard outside the hotel's main entrance and in the lobby on Thursday. Mr. Saleh has ruled Yemen for 33 years, and in the course of the Arab Spring uprisings, thousands of Yemenis protesting Mr. Saleh's rule were killed, injured or imprisoned, or simply disappeared. In November, he agreed to transfer power to his vice president, and elections have been set for Feb. 21. Although the protesters were critical of the Obama administration for granting Mr. Saleh a visa, they said they were not opposed to his receiving medical treatment. When the Obama administration decided in December to permit Mr. Saleh to visit the country, an official said that NewYork-Presbyterian Hospital would be providing his treatment, but the hospital has not confirmed that report. One protester, Ahmed Eltouny, an Egyptian-American, called Mr. Saleh "the butcher of Yemen," and expressed Egyptian solidarity with the Yemeni people. He concluded with the well-known Tahrir Square chant in Arabic, "The people want the fall of the regime." The Nobel Peace Prize-winning Yemeni activist Tawakul Karman spoke to the group from Yemen via cellphone and an interpreter. She accused Mr. Saleh of orchestrating violence in Yemen while in New York, and concluded, "We call on the U.S. to hold Saleh accountable and not to allow him to rule Yemen from the U.S."