KHARTOUM (Reuters) - Police fired tear gas at over 500 protesters about one km (half a mile) from the presidential palace in Khartoum on Thursday, eyewitnesses said.
The protesters' chants were demanding the fall of the regime. Some carried Sudanese flags.
(Reporting by Khalid Abdelaziz; Writing by Yousef Saba; Editing by Kevin Liffey)
