The Los Angeles County Sheriff's Department said they responded to a call for an assault with a deadly weapon in the 8800 block of Dalewood Avenue near Claymore Street at around noon on Sunday.
Deputies said the incident started as a dispute between neighbors, as a neighbor said the 31-year-old suspect pointed a rifle at him.
The man barricaded himself inside the home and would not allow his 55-year-old mother to leave, according to officials.
Authorities later said it was unknown if the suspect's mother was being held against her will or if she was staying in the house by choice.
The woman and a dog came out of the house around 8 a.m. Monday, though it was unclear what circumstances led to her exiting the home.
Sheriff's officials said the woman was being detained pending further investigation.
Authorities stated the man could have multiple guns on him. The suspect was spotted peering through a window multiple times.
The sheriff's department's SWAT team responded to the scene, and negotiators were also at the scene attempting to convince the man to surrender.
The suspect was not cooperating and even fired at SWAT officers at one point, but no officials were reported injured.
Finally around 1 p.m., LASD's Special Enforcement Bureau tweeted that the suspect was safely in custody.
Nearby homes were evacuated by deputies as a precaution. Authorities warned residents to avoid the area because the man was considered armed and dangerous.