ALTADENA >> A woman was shot at the corner of El Molino Avenue and Alameda Street while she walked with her family on Saturday, shortly after the Altadena Christmas Tree Lane lighting ceremony had ended about a half mile away.

Authorities have not identified the woman.

The victim was struck by a bullet at around 6:45 p.m. at the northwest corner of the intersection, according to a Facebook post by the Los Angeles County Sheriff’s Altadena Station.

She sustained a minor bruise and a laceration to the back of her head.

Organizers and attendees of the annual tree-lighting ceremony on Santa Rosa Avenue were unaware that any shooting had taken place, according to Rene Amy, a board member of the Christmas Tree Lane Association. Amy noted there was a large presence by sheriff’s deputies at the ceremony.

Deputies later arrested a suspect after receiving a tip about the alleged shooter.

Witnesses described seeing a woman driving a beige SUV leaving the intersection, officials said.

Sheriff’s investigators recovered a .22 caliber shell casing at the scene, but had very little else to go forward, the statement said.

However, several hours after the incident, a woman called the Altadena Station. She said she was the SUV driver, and was in Los Angeles.

“She provided additional information that led Altadena Deputies and LAPD officers to a house in the city of El Sereno where the shooter was living,” the statement said.

Before authorities arrived at the location, a shooting occurred at the residence, with the suspect leaving the area before deputies could set up a containment.

At 3:30 a.m. on Sunday, Los Angeles Police Department officers responded to a call of a suspicious person. That person turned out the be the suspected Altadena shooter, officials said.

Deputies arrested the suspect for assault with a deadly weapon.

The suspect had one .22 caliber bullet on him, but the officers could not find a firearm.

Deputies did not release any other details on the identity of the suspect.

Editor’s note: This story was corrected to reflect the location of the shooting. The incident occurred about a half mile away from the Christmas Tree Lane lighting ceremony, after the event had ended.