PORTER RANCH (CBS) — Investigators are asking for the public’s help to identify three suspects involved in a string of home invasion robberies.

The thefts began Jan. 9 when police officers were called to a home in the 12000 block of Dunblane Avenue to investigate a home invasion robbery that had just transpired, according to the Los Angeles Police Department.

Several other robberies have taken place since then, usually in the middle of the day, police said.

The suspects forced their way into two different homes in the area, clearing them of valuables, investigators reported.  One victim, who had to replace a damaged door, said thieves got away with alcohol and jewelry after breaking through a back window.

One 15-year-old resident confronted the suspects, who tied the teenager up, but did not injure him. Police are now urging residents to make their presence known without putting themselves in danger.

Police ask that the public be on the lookout for two young men, who are described as black and between 20 to 25 years old. One of the men is reportedly 6’3″ and weighs about 200 to 225 pounds. The other suspect is roughly 5’9″ and weighs approximately 170 to 180 pounds. Both were reportedly seen in a newer-model, white Chevrolet Traverse with damage on the passenger’s front right door.

Anyone with information about these crimes was asked to call (818) 832-0609. During non-business hours or on weekends, calls should be directed to 1-877-LAPD-24-7 (877-527-3247). Anyone wishing to remain anonymous can call 1-800-222-TIPS (800-222-8477).