A female teacher has been sacked by an elite Catholic boys school after being charged with sexually abusing a student in what has been described as a distressing betrayal of trust.

Ella Clements, 24, is accused of engaging in an inappropriate relationship with a schoolboy at St Augustine's College in Brookvale, in northern Sydney .

She has been charged with three counts of aggravated sexual intercourse with a child.

Clements also faces one count of intentionally sexually touching a child.

St Augustine's principal Jonathan Byrne said the college notified police after becoming aware of the allegations and immediately stood Clements down from her role.

Her employment has since been terminated.

"We continue to work with police and relevant authorities and, in the meantime, our focu

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