At least 24 people were killed in separate incidents in northern Mexico as the country reeled from a wave of drug-related violence.
In Ciudad Juarez, gunmen drove up to a house where a high school party was in full swing and opened fire killing 14 people and wounding 17 others, the city public safety agency said.
Most of the victims were “youngsters”, said the Chihuahua state attorney general’s office.
Witnesses said the gunmen drove up to the house in several cars, first shooting at people gathered outside the dwelling, then pursuing some of the youngsters who jumped over a fence to get away.
“A young man was celebrating his birthday with his schoolmates… and when the host of the party came out to drop off his girlfriend” the shooting broke out, a neighbour told AFP.