A man accused of sexually assaulting a 13-year-old girl who he allegedly groomed through social media was last month granted strict NSW Supreme Court bail which included a condition that he not access the internet.

John Blair Burns, 28, who was living at Glendale since being granted Supreme Court bail in October, did not come up from the cells at Toronto Local Court on Monday or apply for bail after he was charged on Sunday with aggravated sexual assault on a victim under the age of 16, procuring a child under 14 for unlawful sexual activity and breaching his bail.

Police say they stopped Mr Burns’s car at Cardiff about 1am on Sunday. A check of his bail conditions revealed Mr Burns was in breach of a curfew and he was arrested and taken to Toronto police station. A 16-year-old boy and a girl, 13, who were in the car with Mr Burns, were taken into police care.

But Child Abuse and Sex Crimes Squad detectives were called in after the 13-year-old girl disclosed that she had allegedly been sexually assaulted by Mr Burns, police said.

Detectives allege that Mr Burns sexually assaulted the girl at a home at Lake Macquarie after the pair met on a social media application.