Three women have been rescued from a south London home after one of the women called a local London charity to report that she had been held against her will for three decades. Two other women were also rescued from the house.

The charity, Freedom Charity, notified police of the phone call which occurred in October. According to Metropolitan Police, the phone call to the charity was made after one of the women held captive watched a documentary regarding forced marriages.

Metropolitan police have commented that a 67-year-old man and a 67-year-old woman have been taken into custody upon a slavery and domestic servitude investigation.

“All three women, who were highly traumatized, were taken to a place of safety where they remain,” police said in a statement. They confirmed that an investigation of the “very serious” allegations was underway.

The three women rescued are reportedly a 69-year-old Malaysian woman, a 57-year-old Irish woman, and a 30-year-old British woman.

It has not been reported as to which of the three woman made the phone call for help or how long the other two had been held.