At least 19 people were killed and more than 40 wounded in a series of armed attacks across Chicago and central Mexico over the weekend, according to police and local officials.

In Chicago, a spate of shootings beginning on Friday evening left seven people dead and 38 injured, the Chicago Police Department said. Among the dead were a 21-year-old man shot in the chest on Sunday, an 18-year-old shot on Saturday, and a 50-year-old shot on Friday. The most lethal single episode occurred on Friday night, when a gunman opened fire from an SUV into a street gathering, wounding 12 people aged 17 to 47. The shooting took place on Juneteenth, a holiday commemorating the end of slavery in the United States, and came hours after former President Barack Obama inaugurated his presidential centre on the city’s South Side. Mayor Brandon Johnson condemned the violence, while Governor J.B. Pritzker’s office did not immediately respond to President Donald Trump’s renewed call for military intervention in the city.

In the Mexican state of Guanajuato, two separate massacres on Saturday night claimed eight lives and left six injured, state authorities reported. In San Luis de la Paz, gunmen attacked a group outside a licensed premises in the community of Puerto Blanco, killing three and wounding four. Within an hour, a second attack in Salamanca’s San Juan de Razos neighbourhood, near a football field, left five dead—including two adolescents—and two more seriously injured. The Guanajuato attorney general’s office said it had opened investigations, but no arrests were immediately announced. Guanajuato has experienced sustained criminal violence linked to organised crime, and officials have yet to determine a motive.

In Mexico City, a dispute inside a bar in the Álvaro Obregón borough escalated into gunfire, killing four men and injuring a fifth, the Secretariat of Citizen Security said late Saturday. Two people were detained: a man identified as a possible shooter, who was hospitalised under guard, and a woman allegedly caught concealing a firearm outside the establishment.

Investigations are continuing in all three locations. Provisional death tolls may rise as some of the wounded remain in critical condition, authorities cautioned.