Iran Press/ America: Police "arrived at the scene where they found... three dead women, three men and a seven-year-old minor, in addition to one person seriously wounded," said a statement from City Hall in Cortazar, the municipality where the attack took place.
The surrounding state of Guanajuato in central Mexico has seen a surge in drug-related violence in recent years.
The gunmen arrived at the La Palma swimming resort at 4:30 pm local time (2230 GMT) "to perpetrate the attack," the statement said.
Attackers went directly toward a group of people and opened fire, then yanked out security cameras from the site before retreating, authorities said.
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