An 18-year-old girl was found guilty on Monday of plotting a terror attack in London with her sister, Rizlaine Boular, and mother, Mina Dich. A jury at London's Central Criminal Court also found Safaa Boular guilty of trying to travel to Syria for terrorism.

The case:

Boular was detained last year after she attempted to travel to Syria to visit her partner, an older Islamic State group fighter whom she wanted to marry. Her fiance was later killed in Syria.

She tried to recruit her older sister Rizlaine in phone calls from prison to execute an attack in the British capital.

The girls' mother carried out reconnaissance around London landmarks and bought knives and a rucksack.

The then 17-year-old used code words over the phone that referred to an attack as an "Alice In Wonderland"-themed tea party, prosecutor Duncan Atkinson told jurors at the Old Bailey during her trial.

A fourth woman, Khawla Barghouthi, pleaded guilty to having information about acts of terrorism and will remain in custody along with the other three women. Counter terrorism officers in London

'Toxic ideology' Deputy Assistant Commissioner Dean Haydon said the women, "were filled with hate and toxic ideology and were determined to carry out a terrorist attack. Had they been successful, it could well have resulted in people being killed or seriously injured." Sue Hemming from the Crown Prosecution Service (CPS) said, "They all present a danger to the public and will be sentenced for their actions."

What happens next? Mina, Rizlaine and Khawla were scheduled to be sentenced at London's Old Bailey on June 15. Safaa was also remanded in custody after her guilty verdict and will be sentenced on a date yet to be confirmed.

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kw/kms (AP, AFP)