riyadh/dubai saudi arabian bank begin freeze account suspect ensnare anti-corruption probe bank business source tell reuters monday dozens people include royals minister businessmen detain investigation new anti-corruption body head crown prince mohammed bin salman central bank order bank freeze account people investigation probe source say decline name authorize talk media two source say number account affect could run hundreds none source mention name affect freeze account already happen say another source freeze precautionary measure end soon suspect either charge pronounce innocent central bank spokesman immediately available comment eleven princes four minister tens former minister among arrest include billionaire prince alwaleed bin talal saudi arabia best-known international investor accord saudi officials allegations men include money launder bribery extort officials take advantage public office personal gain saudi official say new anti-corruption committee power seize assets home abroad result investigations know saudi bank freeze account suspect detain probe source