Gunmen who killed four men and wounded six others at a backyard football-viewing party of mostly ethnic Hmong had targeted the residence in Fresno, California, possibly in retaliation for a previous altercation, police said on Monday.

Four men were killed and six others wounded in a shooting at a house party in California, police say

Tragedy struck Fresno when someone opened fire at a party, killing four people and wounding six. Police have not made any arrests, and do not know what the motive was. Dennis Valera of CBS47 Fresno joins CBSN with the latest on the investigation.

Police say people at a backyard gathering were hit by a suspect or suspects who sneaked in and opened fire

Fresno police said at least nine people were shot during a football-watching party Sunday evening.

Ten people were shot, four fatally, in what police are calling a "mass casualty" shooting at a backyard football watch party in southeast Fresno, Fresno police said Sunday.

Ten people were shot, four fatally, in what police are calling a "mass casualty" shooting at a backyard football watch party in southeast Fresno, Fresno police said Sunday.

Four people are dead and six more injured in a mass shooting at a party in Fresno, California, police said. No suspects have been identified.

A group of family and friends were gathered in a backyard Sunday to watch a football game when a gunman walked up and began shooting, killing four young men and wounding six others, police in Fresno, California, said.

Police in the California city of Fresno were investigating a mass shooting at a football game party on Sunday in which at least 10 people were shot, killing four, with five others left in critical condition and another wounded, police said.

Four people were killed and six more wounded when "unknown suspects" sneaked into a backyard filled with people at a party in central California and fired into the crowd, police said.

Ten men were shot, four of them fatally, during what police say was "very likely" a targeted shooting during a backyard football watch party in Fresno, California.

Ten people were shot and four of them were killed Sunday in a shooting at a party in Fresno, police said.

The police say at least 10 people were shot just before 8 p.m. in the backyard of a home in southeastern Fresno by "unknown suspects."

The police say at least 10 people were shot just before 8 p.m. in the backyard of a home in southeastern Fresno by "unknown suspects."

At least ten people have been shot, and four are dead after Fresno Police say a suspect opened fire as a family gathered at an east central Fresno home Sunday night.

The Fresno Police Department says the suspected shooter, identified as Kelon White, 28, is now wanted for the murder and has yet to be found. https://t.co/dmHZGepIyK

RT @briannaabc30: Fresno police are investigating two separate homicides from over the weekend. While police say homicides are down 41% th…

RT @KMJNOW: Man Dead Following Shooting In Fresno, Suspect Wanted. Listen to the report by KMJ's Liz Kern. @LiziKernNews https://t.co/nulF…

RT @JenniferNOrtega: Police are looking for a suspect in connection to an apartment shooting on Sunday in northwest Fresno @KSEE24 https://…

The husband, identified as 25-year-old Simon Martinez, was rushed to the hospital after life-saving measures were attempted, but he later died at the hospital. https://t.co/Ivmk4L5XqG

RT @CBS47: JUST IN: A husband was killed and his wife was wounded after they were shot as they left a party in Fresno on Sunday, according…

RT @CBS47: JUST IN: A husband was killed and his wife was wounded after they were shot as they left a party in Fresno on Sunday, according…

RT @JenniferNOrtega: Police are looking for a suspect in connection to an apartment shooting on Sunday in northwest Fresno @KSEE24 https://…

Fresno police are investigating two separate homicides from over the weekend. While police say homicides are down 41% this year compared to last year, they say both of the victims are believed to be innocent and neither of them deserved to die: https://t.co/ARNrgbgV6T @ABC30 https://t.co/9mYQ4r4gzr

Police are looking for a suspect in connection to an apartment shooting on Sunday in northwest Fresno @KSEE24 https://t.co/YlnpbUvunF

Man Dead Following Shooting In Fresno, Suspect Wanted. Listen to the report by KMJ's Liz Kern. @LiziKernNews https://t.co/nulFw4E6R5

RT @KMPHFOX26: A man is now on the run after police say he shot and killed someone Sunday afternoon in Fresno. https://t.co/dmHZGepaJc

RT @CBS47: JUST IN: A husband was killed and his wife was wounded after they were shot as they left a party in Fresno on Sunday, according…

A man is now on the run after police say he shot and killed someone Sunday afternoon in Fresno. https://t.co/dmHZGepaJc

RT @CBS47: JUST IN: A husband was killed and his wife was wounded after they were shot as they left a party in Fresno on Sunday, according…

25-year-old Simon Martinez and his wife were shot while leaving a party Sunday in Fresno. Simon died and his wife was hospitalized with a non-life-threatening gunshot wound. https://t.co/Ivmk4L5XqG

RT @CBS47: JUST IN: A husband was killed and his wife was wounded after they were shot as they left a party in Fresno on Sunday, according…

JUST IN: A 25-year-old husband was killed and his 27-year-old wife was wounded after they were approached by a man who allegedly demanded property from the couple, according to Fresno PD. https://t.co/bSCwhjPlg6

JUST IN: A husband was killed and his wife was wounded after they were shot as they left a party in Fresno on Sunday, according to Fresno PD. Officials say they were approached by a man who demanded property from the couple. https://t.co/0n79c7WTDY

A man has died following a shooting in central Fresno, and police are now searching for the suspect accused of killing him. https://t.co/xHYOMIC03B

Man dead following shooting in Fresno | KMPH #BreakingNews #Breaking #Shooting https://t.co/3Bz7UO0pSJ https://t.co/t4IRhW2aZY

Fresno Police Arrest Gang Member on Multiple Firearm Related Charges and Resisting Arrest After Shooting #MariposaCounty #MaderaCounty #Yosemite #mercedcounty #FresnoCounty https://t.co/tCQHawqURJ

One man dead, woman wounded in shooting on Fresno road. Police looking for suspect #BreakingNews #Breaking #Shooting https://t.co/TWPEzdzA1H https://t.co/lxkvYb4oZs

RT @KSBY: At least three people are dead, and eight others are wounded after a shooting in Fort Worth, Texas. https://t.co/f76fOAdKx3

RT @KMPHFOX26: Deputies have identified the suspect as 30-year-old Tyler Kennedy Deel. https://t.co/8iYAQT2h2V

“… the man refused to drop a tree branch he was holding and started to run toward the deputy.” The deputy was afraid of a tree branch. Lol. Pathetic. Suspect killed by Fresno Co. deputy identified, had previous violent encounter with law enforcement https://t.co/2nMedDp7Sp