Updated Monday 7:55 a.m: After gaining entry to the home, police found the suspect was not inside, according to City News Service.
Police used a remote-controlled, camera-equipped robot to check out the interior of the home.
Updated 10:45 p.m: As of 10:45 p.m. the standoff was still ongoing. Patch will update this story Wednesday morning.
Updated 9:10 p.m: As of 9 p.m. officers are still trying to get the suspect out of the home, according to a message sent out by the Sheriff's Department.
The department is urging anyone in the affected area to stay inside their homes.
The department has still not found a gunshot victim and it is possible nobody was hit, according to the release.
Updated 7:40 p.m: A SWAT team is en route to assist in entering the home the suspect may be located in, according to Sgt. Gibson. However, officers on scene are not certain that the suspect is in the house.
Officers will attempt entry of the home once the SWAT team shows up, he added.
Original: The Sheriff's Department is seeking a shooting suspect considered armed and dangerous in the vicinity of Lincoln Avenue and Mariposa Street, according to Sgt. Scott Gibson of the Los Angeles County Sheriff's Department.
Officers have reports of an assault with a deadly weapon that happened recently in the area, though they have not been able to locate the victim, Gibson said. They believe the victim may have transported him or herself to the hospital.
"The victim apparently got in the car and went to the hospital on his own," Gibson said. "At this time we do not have the victim."
Sheriff's investigators have not yet communicated with the suspect but plan to reach out to him shortly, Gibson said.
"We're going to order him out soon and see if he comes out," Gibson said just after 6 p.m.
A police helicopter has been hovering over the scene. Gibson said that sheriffs have not called in a SWAT team but may do so at some point if the suspect does not cooperate.
"We're going to attempt to do what we can on our own first," he said.
The department set up a containment area around a location where they believe the suspect is located. Devirian Place, Mariposa Avenue and Mendocino Avenue between Lincoln Avenue and Casitas Avenue. As of 5:05 p.m. they had not yet located him but believe they may know his location.
Sheriff's Capt. John Benedict wrote on Twitter at 5:24 p.m. that witnesses saw a suspect fire shots at a "random vehicle."
A woman who only identified herself as Meena told Patch she called the sheriff's department after she heard gunshots near the Sacred Heart Catholic Church and saw a teenager with blond hair and a white shirt take off running.
"It sounded like a pop gun," she said. "Just three shots, pop, pop, pop."
She saw the teenager stop and talk to two people and then continue to flee, she said. She did not see anyone who appeared to have gotten shot.
Patch will update this story with more information when it becomes available