A court spokesman confirmed the UK women's guilty pleas but said they had not yet been sentenced, Sky News reported.
Both women have pleaded guilty to drugs trafficking.
It means they automatically benefit from a sixth off the minimum jail sentence of eight years and will be sentenced to six years and eight months in prison.
Sentencing has not taken place yet and a new hearing where the women will be sentenced has now got to be arranged.
But it's likely that will take place in around a week's time.
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