A just-amended lawsuit alleges six additional instances of unprovoked attacks on Iraqi civilians by Blackwater contractors.

Also added to the suit is a racketeering count accusing Blackwater founder Erik Prince of running an ongoing criminal enterprise involved in, among other things, kidnapping and child prostitution.

The latest charges, filed this week in U.S. District Court in Alexandria, bring to more than 60 the number of Iraqis allegedly killed or wounded since 2005 by armed Blackwater contractors guarding U.S. diplomatic personnel in Iraq.

The Moyock, N.C.-based security company, since renamed Xe, earned more than $1 billion under that contract before the State Department, under pressure from the Iraqi government, let it lapse in May.