At least 15 people have been killed in a single day of violence in Ciudad Juarez, a Mexican city bordering the United Sates, the Mexican authorities have said.
A child, three women and a university professor were among the dead, according to officials on Saturday. Arturo Sandoval, the state prosecutor's spokesman, said a seven-year-old boy was travelling with his father in a truck when armed men opened fire on Friday killing them both.
Three women were also shot dead in two other separate incidents, he said.
Elsewhere in the city, Professor Jose Alfonso Martinez, a member of the Social Sciences Institute of the Autonomous University of Ciudad Juarez, was shot in front of his wife in an attack by at least four men in a residential area. His wife was unhurt. Martinez is the third professor at the Autonomous University to be killed this year, with a fourth from the Ciudad Juarez branch of the University of Chihuahua.
Another nine men were killed in six separate incidents.