An Amber Alert went out on Monday for Sabrina Sanchez (left) and her daughter Itzel Sanchez (right) (Pictures: Facebook/Los Angeles Police/National Center for Missing & Exploited Children)

Authorities in Southern California have issued an missing persons Amber Alert for a mother and her two-month-old daughter after they disappeared on Sunday morning.

Police and sheriff’s deputies in Los Angeles County are desperately searching for Sabrina Sanchez, 31, and her daughter Itzel Sanchez.

Investigators believe they were kidnapped by 25-year-old Efrain Sanchez-Jimenez, who is Sabrina’s husband and Itzel’s father.

According to authorities, Sanchez-Jimenez threatened his wife and child before they disappeared.

The Amber Alert was issued on Monday (Picture: Los Angeles County Sheriff’s Department)

Sabrina Sanchez was reportedly threatened by her husband (Picture: Facebook)

The two-month-old girl was also reportedly threatened by her father (Picture: National Center for Missing & Exploited Children)

‘Suspect Sanchez has made recent threats to murder his wife and child and he is believed to be armed with a handgun,’ the Los Angeles County Sheriff’s Office stated on Sunday.

The three were last seen leaving Sabrina’s home around 11.45am in Lancaster. The city is located about 70 miles north of downtown Los Angeles.

‘It is believed the victims left with the suspect out of duress and fear for their safety, after he previously committed a sexual assault upon a family member,’ the sheriff’s office said.

Sabrina and Itzel left with Efrain into his silver Buick Lucerne sedan, which has Colorado license plates with the number AUI-X94. Photos of the sedan have been publicly released.

Efrain Sanchez-Jimenez is considered armed and dangerous (Picture: Los Angeles Police Department)

The suspect was seen driving a silver sedan (Picture: Facebook)

Efrain was last seen driving the sedan while wearing a white tank top and silver shorts. He has short brown hair and brown eyes.

Sabrina was described as having black hair and brown eyes. She was last seen wearing a red and white dress. Her daughter Itzel has a full head of brown hair and brown eyes.

If seen, authorities are asking Californians to call 911, or contact the Los Angeles County Sheriff’s Office. Authorities are considering Efrain armed and dangerous and say his wife and child are in ‘serious physical danger’.

On Monday, the alert was extended to greater Southern California, including San Bernardino, Riverside, Orange, San Diego and Imperial counties.

An Amber Alert has been issued for a mother and her two-month-old daughter missing since Sunday.