A 26-year-old Indonesian domestic worker was detained for police investigation after her employer accused her of mixing bleach into a drink in Tuen Mun, in Hong Kong’s New Territories, on Sunday.

At around 1am, a 42-year-old woman who lives in an apartment in the Beaulieu Peninsula residential complex in So Kwun Wat told police she had detected bleach in a cup of green tea, Oriental Daily reported.

The woman had asked the domestic worker to make her a cup of green tea but after a sip, she suspected bleach had been added.

Police arrested the domestic worker on suspicion of administering poison with intent to injure.

The complainant reported that she felt unwell and was sent to a hospital for treatment.

It was understood that the domestic worker had been working for the family for three months and was in a bad relationship with the alleged victim.

Officers from the Tuen Mun Police District crime squad were investigating the case.

In May, an Indonesian domestic worker was accused of putting urine in her employer’s water bottle, also in Tuen Mun. However, charges against her were dropped by the prosecutor in mid-August as no urine was found in the water after laboratory testing.

On August 14, a Filipino domestic worker was arrested in Fo Tan in the New Territories for allegedly bathing a six-month-old baby with a mixture of bleach and shower gel.

Read: Charge against maid of adding urine to water bottle dropped

Read: Filipino maid accused of mixing bleach into baby’s bath gel