Police in Sudan have used teargas to break up a student protest at the University of Khartoum.<br /><br />On Saturday security forces arrested a prominent opposition politician - in the latest crackdown on dissent.<br /><br />There've been a series of protests in Sudan over the past three weeks; people are angry over the rising cost of living. Zeina Khodr is live for us in Sudan's capital, Khartoum.
