Three Tongan nationals who are in Australia on working visas will appear in court on Wednesday in New South Wales mid-north coast, accused of sexually assaulting two teenage girls at a park over the weekend.

It is understood that the men are in Australia on unskilled visas and had only recently completed Hotel Quarantine to start work in the Wingham area. Meanwhile, investigators are working with the Department of Home Affairs regarding the visa status of the group.

The News.com.au reported that at about 10:00pm on Saturday, the Emergency Services were called to Bent St in Wingham following reports that two teenage girls had been sexually assaulted by three men at a nearby park.

A crime scene was established at the park, where specialist forensic officers started an investigation and the matter was referred to detectives from the NSW Police State Crime Command’s child abuse and sex crimes squad.

The detectives arrested three men – aged 21, 24 and 31 years at a Wingham business at 11.45am on Tuesday, and another 21-year-old man at 2.30pm in Wingham.

All the four men who are Tongan nationals were taken to Taree police station.

The 31-year-old was released.

One of the 21-year-olds was charged with aggravated sexual intercourse with a child (aged between 10-14 years), while the other 21-year-old was charged with two counts of intentionally sexually touching a child (aged between 10 and 16 years).

It was not clarified in the report what the 24-year-old was going to be charged with, but they were all refused bail, and are scheduled to appear at a Taree court on Wednesday.