NSW teacher accused of touching student

A support teacher has been charged after allegedly sexually touching a female high school student in Sydney's west.

Detectives in January began investigating reports a 12-year-old girl had been sexually touched by man during a school class last year, NSW Police said in a statement on Thursday.

A 46-year-old man was arrested at a home in Bossley Park on Thursday morning. The man, who is a school support teacher, was charged with aggravated sexual touching of another person.

He was granted strict conditional bail and is expected to appear at Fairfield Local Court on June 5.