Yim Srang, a court spokesperson in the north-western province of Siem Reap, said on Monday that the court decided that the seven - who were freed on bail last week - could no longer stay in Cambodia.
Ten young Westerners - five from the UK, two from Canada, and one each from Norway, the Netherlands and New Zealand - were detained when police raided a party at a rented villa in Siem Reap town and found people who said they had been "dancing pornographically" and offended Cambodian standards of morality.
Three of the 10 considered organisers of the event were denied bail.
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