Buddhist laity seem not to have been singled out for persecution, although traditional belief in the tutelary spirits, or "neak ta", rapidly eroded as people were forcibly moved from their home areas. The position with Buddhist monks was more complicated: as with Islam, many religious leaders were killed whereas many ordinary monks were sent to remote monasteries where they were subjected to hard physical labour. The same division between rural and urban populations was seen in the regime's treatment of monks. For instance, those from urban monasteries were classified as "new monks" and sent to rural areas to live alongside "base monks" of peasant background, who were classified as "proper and revolutionary". Monks were not ordered to defrock until as late as 1977 in Kratié Province, where many monks found that they reverted to the status of lay peasantry as the agricultural work they were allocated to involved regular breaches of monastic rules. While there is evidence of widespread vandalism of Buddhist monasteries, many more than were initially thought survived the Khmer Rouge years in fair condition, as did most Khmer historical monuments, and it is possible that stories of their near-total destruction were propaganda issued by the successor People's Republic of Kampuchea. Nevertheless, it has been estimated that nearly 25,000 Buddhist monks were killed by the regime.