Saudi Arabian authorities have made further arrests and frozen more bank accounts in an expanding anti-corruption crackdown on the kingdom’s political and business elite, Reuters reported quoting sources familiar with the matter.

According to the source, a number of individuals are being telephoned by investigators about their finances but appear to remain at liberty, one of the sources said, adding that the number of people targeted by the crackdown was expected eventually to rise into the hundreds.

The number of domestic bank accounts frozen as a result of the purge is over 1,700 and rising, up from 1,200 reported on Tuesday, banking sources said.