Arab leaders fear spread of Tunisian unrest

>>> another crisis, now the firestorm in the streets of tunisia which isn't dying down. the president who held power for decade there's is gone, forced out of the country. but parts of his regime are still in place. and the people there aren't having it. meanwhile the rest of the arab world is afraid there could be uprisings like it in their country that is could also quickly get out of hand. our chief foreign correspondent richard engel is in the capitol of tunisia tonight.

>> reporter: good evening, brian. they know the struggle to accomplish the first successful popular revolt in the arab world in decades is far from over. the protesters were back on the streets today and with more demands. they battled with police who launched tear gas into the crowd. the injured were carted away in trucks. these were the most violent clashes since demonstrators forced tunisia 's president of 23 years to flee to saudi arabia last week. all then ben ali is gone, members of his party still control tunisia 's key government ministries. today, at least five opposition leaders resigned, saying they won't serve with the old government.

>> ben ali get out of our country because they are killers.

>> reporter: 31-year-old insurance salesman malik al zawi told us he'll stay on the streets until tunisia has a new democratic government and freedom of expression . police barricades have been set up on most streets here. but what's happening here in tunisia is sending shock waves across the arab world . there's now talk of spreading the tunisian model. two people tried to burn themselves to death to copy a tunisian suicide last month that triggered the demonstration. there have been similar self-emulations. many share tunisia 's frustration with corruption, high prices and authoritarian rule, the former first lady layla trabelsi has long been unpopular because of her lavish spending, often called mafia own stakes in tunisia 's biggest companies. there are reports trabelsi stole from the central bank before leaving with her husband. the bank has denied it. arab governments, brian, are scrambling to prevent this from spreading. egypt is hosting an economic summit now focused on lowering prices, jordan and syria both backed away from plans to cut subsidies and oil rich kuwait announced it's giving every single citizen the equivalent of $3,500.

>> richard engel on the ground reporting that story for us,