The parents of a 12-year-old girl set up CCTV cameras in her bedroom in a bid to catch their relative abusing her.

The girl's parents alleged their daughter was being abused and decided to set up a sting at their home in Moron in Buenos Aires province, Argentina.

Footage taken from the cameras allegedly showed the man, identified as Leandro Sebastian Martinez, enter the girl's bedroom and touch her.

She then pointed to the newly installed cameras and the 41-year-old looked right at the lens.

According to local media, the family were suspicious their daughter was being sexually assaulted by her relative after seeing a WhatsApp message from her in August 2018 that was sent to a school friend.

Leandro Sebastian Martinez is the husband of one of her father's cousins who is very close to the family

But they were unsure whether the message shown to them by the school friend's mother was true or not as it detailed how her relative had touched her bottom and private parts.

The girl was reportedly referring to Sebastian Martinez, who is the husband of one of her father's cousins who is very close to the family.

They had decided to discuss the case with the school psychologists but they did not take legal action against the suspect as Sebastian Martinez's wife was going through a pregnancy at the time and they were not sure if the daughter was serious in the note.

But they decided to install a CCTV camera in their home including in the child's bedroom in a bid to keep an eye on her.

Martinez was caught on camera looking right into the lens after the girl's parents set up CCTV

It was these images that were then used to prove that the relative was trying to abuse her when he followed her into the bedroom and she deliberately stood still right in front of the camera when he assaulted her, she then pointed out that he was being filmed.

It was later revealed the girl had even invited the relative into the home on the pretext of showing him some renovation work, aware that he might attempt to try and assault her again.

The girl's father, Pablo, told local media: 'There was a family reunion in my parents' house next to ours.'

He said the girl had insisted on showing Sebastian Martinez some improvements in the house and added she wanted to take the risk because she could not put up with what was going on any longer.

When he allegedly assaulted her, the girl told him: 'Did you notice that my parents installed security cameras?'

When Sebastian Martinez allegedly assault the 12-year-old she reportedly told him, 'did you notice that my parents installed security cameras?'

At this point the man reportedly grabbed the girl around her neck before going on the run.

Pablo told local media: 'When we saw that the videos proved what our daughter told us was true, we went crazy.'

The girl's mother Patricia said: 'My daughter was a flower girl at his wedding. We look after our children but our worst enemy was there half a meter from us.'

Reports said that local authorities have issued an arrest warrant last month, although the suspect has not been located yet.

Pablo told local media: 'When the police broke into his house supposedly Leandro and his wife had gone on holiday to Mar del Plat, but they left the back door unlocked.

'Who goes on holidays and does that? They had been warned about the arrest, obviously.'

The investigation is still ongoing.