At least four men were killed and six others were wounded Sunday night in southeast Fresno when gunmen sneaked into a backyard party and opened fire on dozens of people watching football. It was the third mass shooting in California in less than a week.

In an update just before 10 p.m., Fresno police said 10 people had been shot just before 8 p.m. in the backyard of a home on the 5300 block of East Lamona Avenue near Caesar Avenue. The neighborhood of single-story homes remains cordoned off and nearby roads including Peach and Olive avenues were closed to traffic at 11 p.m.