( CNN ) -- A teenage girl was raped at the same Keith Urban show where 20 people got so drunk they were hospitalized , police said . The attack happened in front of a large crowd of other concertgoers on the lawn of the Xfinity Center , an outdoor amphitheater in Mansfield , Massachusetts , on Saturday night , a police statement said . The rape ended when a woman in the crowd pushed the alleged attacker off the victim and he fled , police said . Sean Murphy , 18 , was arrested `` a short time later '' and charged with rape , police said . `` Officers conducting the investigation were assisted by patrons that had been concerned and took photos and video of the assault on their cellular phones , '' the Mansfield Police statement said . `` Those phones are being processed to recover the digital evidence of the assault . '' Murphy entered a not guilty plea in court and was released on $ 10,000 bond . `` Put simply , this was a consensual act , not a sexual assault , '' his lawyer said in a statement to CNN on Wednesday . `` There are no allegations of force or violence against him . This was a private act that regrettably occurred in a public place . Mr. Murphy deeply regrets this incident and I am sure the young woman does as well . The young woman was neither intoxicated nor overcome by drugs at the time . Mr. Murphy has no criminal history whatsoever . '' `` You are going to need to go through local authorities on this one , '' Urban 's representative told CNN when asked for a comment Wednesday . The country star and `` American Idol '' judge posted a video on YouTube after the show Saturday night commenting on what he saw on the lawn from the stage . `` Up on the lawn tonight , that was nutso . It was so cool , '' he said . Fans hospitalized after 'nutso ' Keith Urban concert . More than 20 people were hospitalized after the concert in eastern Massachusetts , police said . Another 50 were taken into protective custody , and several others were arrested over `` alcohol-related issues , '' local authorities said . `` In total , fire and EMS attended to 46 medicals resulting in 22 transports mostly alcohol-related , '' said Mansfield , Massachusetts , Police Chief Ron Sellon and Fire Chief Neal Boldrighini in a joint statement . `` Police dealt with a steady stream of intoxicated persons as well , resulting in over 50 people being taken into protective custody and a number of others arrested for alcohol-related issues . '' About 18,000 attended the concert at Xfinity Center in Mansfield , about 30 miles south of Boston . Tim McGraw rep : He swatted fan to save his pants . Dozens hospitalized during Avicii concert in Boston . CNN 's Mayra Cuevas , Todd Leopold and Cristy Lenz contributed to this report .
NEW : The suspect 's lawyer says it `` was a consensual act , not a sexual assault '' Police say the rape happened `` in front of a large crowd '' on the lawn of Xfinity Center . A woman stopped the attack by pushing a man away , and he fled , police say .