The victim whose dogs were stolen told the LAPD that the dogs had been left under the care of a friend.
The theft occurred at about 3pm local time on Sunday.
The victim's friend said two people wearing ski masks arrived at the residence and stole the puppies.
The dog-watcher was not injured during the theft, local media reported.
One of the thieves was described as being male, standing at 1.72 metres tall, and wearing a black ski mask, black trousers and a purple shirt.
The second thief was reported to have spoken Spanish during the theft. He was described as standing at 1.77 metres and also wearing a black ski mask.