Sudan’s state news media said Thursday that the military would make an important announcement. The statement comes as protests against the rule of President Omar Hassan al-Bashir, the country’s authoritarian leader, have engulfed the nation.“The Sudanese army will issue an important statement soon. Wait for it,” a television anchor said, according to Agence France-Presse, a newswire.ImageMr. al-Bashir ruled Sudan longer than any leader since the country gained independence in 1956.CreditAshraf Shazly/Agence France-Presse — Getty ImagesWitnesses told the Reuters news agency that thousands of people had descended on the country’s defense ministry chanting, “It has fallen, we have won.”Mr. al-Bashir, who has long been regarded as a pariah in the West and is wanted on genocide charges in connection with atrocities in Darfur, has ruled Sudan longer than any leader since the country gained independence in 1956.The state news media report, accompanied by patriotic music, was made as protesters gathered outside the military’s headquarters in Khartoum, the country’s capital, demanding Mr. al-Bashir’s ouster.Mr. al-Bashir came to power as a little-known general in 1989 during an Islamist and military-backed coup. In the following years, he purged Islamists and insiders from his party, and demonstrated a knack for political survival.