The incidents happened on the 22000 block of Gresham Street in January and on the 22900 block of Cantlay Street last month.
Authorities released a sketch of one of the suspects. He's described as Hispanic, 30 to 40 years old, 170 to 190 pounds. He is between 5 feet 7 inches and 5 feet 11 inches tall. He has black hair and brown eyes.
Anyone with information was asked to call the Los Angeles Police Department at (877) LAPD-24-7.
