CAIRO (AP) — A senior Egyptian Justice Ministry official says ousted President Hosni Mubarak’s two sons have an estimated $340 million in Swiss bank accounts.

Assem al-Gohary says Swiss authorities are investigating whether one of the sons, Alaa, was involved in money laundering along with other ex-regime figures. At home, Mubarak and his sons have been charged with corruption.

Switzerland has already frozen the assets of Mubarak and his associates. Al-Gohary says most of those assets belong to the sons.

Egypt’s attorney general froze assets of the former presidential family on Feb. 20, in the aftermath of 18-day uprising that ousted Mubarak.