Human rights activists have expressed outrage after a Mexican man accused of sexually assaulting a schoolgirl was reportedly found not guilty because the alleged perpetrator “did not enjoy it”.

Diego Cruz, 21, was an alleged member of the so-called ‘Porkys’ gang, four wealthy young Mexican men who were accused of gang-raping a classmate in a case which sparked outrage about the immunity of the rich.

The victim, who was 17 at the time of the alleged attack on January 1 2015, said she had been sexually assaulted and raped after getting into a car with the four young men, all sons of wealthy businessmen from southern Veracruz state.

In a ruling which was made public on Monday, Judge Anuar González found Cruz not guilty of assault because, although Cruz had touched the victim’s breasts and penetrated her with his fingers, he had done so without “carnal intent”, the Guardian reported.