At least 25 people were murdered in Mexico this weekend, according to officials and local media, including nine men who were executed at a house party in a suburb of the wealthy northern industrial city of Monterrey.
Masked gunmen burst into a home in San Nicholas de los Garza as a group watched a local soccer team play on television, according to state prosecutors. Seven were killed at the scene and two more died later at a hospital.
Mexico's federal government called a news conference for later Sunday to detail security plans after murders climbed to a record high of more than 25,000 last year.
Rival drug gangs have increasingly splintered into smaller, more blood-thirsty groups following more than a decade of a military-led campaign to battle the cartels.
Violence is a central issue ahead of the presidential election in July. Mexican President Enrique Pena Nieto's ruling Institutional Revolutionary Party is trailing in third place in recent polls.
There were a wave of attacks in night spots late Saturday and early Sunday. A group of armed men killed three people in a bar in the resort city of Cancun, local media reported.
A Chilean tourist was killed when gunman opened fire at a restaurant in the Pacific beach resort of Acapulco, and two more were killed in a bar in the capital of Veracruz state on the Gulf of Mexico when two men opened fire on employees and a band.
Six more were killed in the border city of Ciudad Juarez, including a couple whose tortured bodies were found in a park.
Four more died in the border state of Tamaulipas, where at least 10 were killed during the week at outlaw road blockades and in shootouts, local media reported.
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