By Khalid Abdelaziz
KHARTOUM (Reuters) - Police in Sudan fired teargas at university student protesters in Khartoum on Sunday after authorities arrested an opposition politician the day before, in the latest crackdown on public dissent against President Omar Hassan al-Bashir.
The Arab-African country has so far avoided the sort of mass unrest that overthrew rulers in Egypt and Tunisia last year, but small anti-government demonstrations have broken out over the last three weeks, driven by rising anger over austerity measures and Bashir's 23 years in power.
Authorities have so far swiftly put the protests down, using batons and teargas.
About 1,000 University of Khartoum students chanting "The people want the downfall of the regime" and "Down, down with military rule" tried to force their way out of their campus on Sunday, but were driven back inside by police who fired volleys of teargas at them, witnesses said.
Some 150 students temporarily broke through the cordon after throwing stones at police, before also being driven back inside, a student and an activist told Reuters.
The police were not immediately available to comment.
On Friday, security forces also fired teargas at worshippers trying to leave a mosque to demonstrate after prayers, witnesses said.
The University of Khartoum has symbolic significance in Sudan's political history as it was the center of popular uprisings in 1964 and 1985, both of which ousted military rulers.
Bashir is one of Africa's longest serving rulers.
SENIOR OPPOSITION MEMBER ARRESTED
On Saturday night, security agents arrived at the house of Kamal Omar, a prominent member of the opposition Popular Congress Party, at around 11:00 p.m. (2000 GMT) and arrested him, his wife said.
"Two cars came to our house and about five security officers came inside," she told Reuters.
Another party leader confirmed the arrest. There was no immediate comment from the security services.
The arrest followed a declaration on Wednesday signed by the country's main opposition parties that backed the demonstrations, even though they have not yet brought their supporters onto the streets in large numbers.
Omar's party is headed by Hassan al-Turabi, once one of Sudan's most influential politicians and a former spiritual mentor to President Omar Hassan al-Bashir, who came to power in a bloodless 1989 coup. Turabi himself has been arrested a number of times.
The two men fell out in the late 1990s and Turabi has since become one of the government's most outspoken critics.
Sudan has been battling an economic crisis - including a budget deficit, high inflation and a depreciating currency - since South Sudan took three-quarters of the country's oil production with it when it seceded a year ago.
Oil was previously Sudan's main source of revenues and foreign currency.
Last month, the government announced tough austerity measures aimed at stabilizing the economy, a move which triggered a spate of small demonstrations, that began on university campuses before spreading beyond the capital.
The protests have rarely gathered more than a few hundred people at any one time, but are an added challenge for a government which is already trying to quell multiple armed rebellions.
(Writing by Alexander Dziadosz and Yara Bayoumy; Editing by Andrew Osborn)
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