At least seven people were murdered in Mexico after gunmen stormed a water park on Saturday.
Shocking footage on social media shows the slain bodies at the park as other revellers are fleeing and screaming in panic in Cortazar, Guanajuato State.
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.
An eyewitness to the attacks told local authorities the armed men had arrived at the pool and opened fire around 4:30 pm local time.
After the shooting, they destroyed the spa shop and took the security cameras before fleeing. Killing three women, three men and a child.
TV Azteca, one of Mexico's main television networks, showed footage from the scene with terrified adults and children still in swimwear on the scene after the shooting.
Guanajuato has become one of Mexico's most violent states due to the dispute between the Santa Rosa de Lima crime group and the Jalisco New Generation Cartel.
Last November, several people were killed in a shootout at a police station in the Guanajuato city of Celaya. The same month, nine people were killed in a shooting in a bar in the Guanajuato town of Apaseo el Alto.
And in September, 10 people died in a pool hall shooting in Guanajuato's Tarimoro municipality.
Mexico has registered more than 350,000 murders since the government controversially deployed the army to fight drug cartels in 2006, most of them blamed on criminal gangs.
The head of the Drug Enforcement Administration told CBS News that the Jalisco cartel is one of the Mexican cartels behind the influx of fentanyl into the US that's killing tens of thousands of Americans.
But Mexico’s president said that US families were to blame for the fentanyl overdose crisis because they don’t hug their kids enough.
Andrés Manuel López Obrador denied that Mexico produces fentanyl and said: “There is a lot of disintegration of families, there is a lot of individualism, there is a lack of love, of brotherhood, of hugs and embraces. That is why they [US officials] should be dedicating funds to address the causes.”
US authorities believe that most illegal fentanyl is produced in clandestine Mexican labs using Chinese precursor chemicals.