Keith Urban's concert in Mansfield, Massachusetts on Saturday night was the site of medical mayhem as dozens of fans required treatment for alcohol-related ailments.

Reuters reports that 46 concertgoers were treated at the concert, with some 22 transported to hospitals in the area, which is about 25 miles south of Boston. According to a joint statement by the town's police and fire departments, authorities called in ambulances from five nearby communities to deal with the crowd's medical needs. More than 50 people were taken into protective custody by police.

According to the Boston Herald, at least some of the medical attention was prompted by inebriated fans passing out and injuring themselves. "In total, Fire and EMS attended to 46 medicals resulting in 22 transports mostly alcohol-related," Mansfield Police Chief Ron Sellon and Fire Chief Neil Boldrighini said in the statement. "The large number of medicals in a shortened time of approximately three hours caused the activation of a phase one EMS plan utilizing ambulances from five mutual aid communities. 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."

Urban's Raise 'Em Up tour hits Cincinnati next, on August 31st, and extends through September 13th, where he'll wrap up with an appearance at the Washington State Fair in Puyallup. The country star will return as a judge on Season 14 of American Idol in January.