(CNN)-- Their Christmas Day did not go as planned.
About 70 people were injured Wednesday when a swarm of carnivorous fish attacked at a beach near the city of Rosario, on the Parana River, Argentina's state-run Telam news agency reported.
It described the fish as a relative of the piranha.
No one was killed.
But swimmers suffered various injuries, including a 7-year-old girl who lost a part of one of her pinky fingers, Telam said.
Ricardo Biasatti, sub secretary of Natural Resources for the province of Santa Fe, described the incident to the agency as "isolated and insignificant," when the size of the river is taken into consideration.
Julian Aguilar, president of a local fisherman's group, also downplayed it, saying the likelihood of such an event happening again was low, as attacks by this type of fish on humans are "occasional."
The area is a popular swimming spot this time of year in Argentina, where it is summer.
Check out some ofour mostread stories from 2013:
#shortyellows:Florida quietly shortened yellow lights
Terrorism Warning:Memo says terrorists practicing dry-runs on Florida flights
Kittens shot:Officer shoots kittens in front of children
Courtroom apology:Woman apologizes for flipping off judge
Controversial Club:College student organizes "White Student Union"
Warning Shot Wife:Mother gets 20 years for firing warning shots at abusive husband
Science Arrest:Teen girl arrested over science project explosion
Wait, WHAT??Dog shoots man in the leg with a handgun
Popular photo galleries:
Faces of Meth:Devastating before and after photos of meth abusers
Trayvon Martin Shooting:Trayvon Martin crime scene photos and George Zimmerman injury photos
Hooters Winners:Winners of the 2013 Hooters swimsuit pageant
Rejected:Funny Florida license plates rejected by the DMV***warning graphic***
Deadly sinkhole:Home collapses, man dies in giant sinkhole
Florida Sex Offenders:Look up sex offenders in any Florida neighborhood here
Restaurant Inspections:Look up inspection reports for any Florida restaurant here