Buenos Aires, Argentina (CNN) -- At least 74 young people were injured Tuesday in Argentina during the annual Day of Spring celebration, and 20 of them required hospitalization, the state-run Telam news agency reported Wednesday.
The injuries included stabbings, beatings and an alcohol overdose, the news agency said. The festivities marking the arrival of spring in the Southern Hemisphere were organized by the Argentine government at three parks in Buenos Aires, the nation's capital.
Among those injured were two pregnant women who were robbed, a 3-year-old child who fell from an elevated surface and a 20-year-old woman who was in an alcoholic coma and had to be put on a breathing machine, Telam said. One gunshot victim also was reported.
The director of emergency medical services, Alberto Crescenti, said officials tended to 80 revelers in 2009 but there were more stabbings this year, "which denotes greater aggression," Telam said.
The festivities took place at three parks in Buenos Aires: Tres de Febrero, Costanera Norte and Roca. Argentina holds the celebration each year on September 21.
Most of the injuries at the Tres de Febrero Park occurred during a 90-minute period as a result of gang fights, Crescenti said.
Video of the events show mostly peaceful and playful gatherings, as many young people toss or kick balls around, sit and chat or engage in amorous embraces while a live rock band plays in the background.