Authorities say Carolina Castellanos and her baby were last seen Thursday in the 700 block of South Westlake Avenue in Westlake.
The 24-year-old mother is 5 feet 4 inches tall and weighs 125 pounds. She left her home pushing a red and black stroller with her infant inside.
Castellanos' family is very concerned because they have not heard from her. If you have any information about her whereabouts, you're urged to call the Los Angeles Police Department.