4 dead after gunman opens fire at California backyard party

At least four people have been killed after a gunman opened fire at a football game party in California's Fresno city.

According to reports, six more people have suffered gunshot wounds.

There was no early word on the suspect or suspects, but police were combing the neighbourhood for witnesses and possible security camera footage.

Police said a gathering of family and friends were watching football in a backyard when they were attacked on Sunday.