Angolan prosecutors vowed on Monday to use "all possible" means to bring back Isabel dos Santos, the former president's billionaire daughter, after thousands of leaked documents brought new allegations she siphoned off hundreds of millions in public money.

Dubbed Africa's richest woman, dos Santos is accused of using her father's backing to plunder state funds from the oil-rich but impoverished southern African country and -- with the help of Western consulting firms -- move the money offshore.
"We will use all possible means and activate international mechanisms to bring Isabel dos Santos back to the country," prosecutor general Helder Pitra Gros told public radio.