GARDEN GROVE (CBSLA.com) — Police are investigating a series of burglaries in Garden Grove involving homes that were being fumigated.

Nine homes have been broken into since July 1 while they were tented and being fumigated for pests, according to police.

The suspects cut the fumigation tenting and either forced their way into the home or entered through unlocked doors and windows.

Workers will generally tent the home and then leave it for several days, so the chemicals can kill pests.

No one is usually inside the home during this time until the workers come back to remove the tenting.

The majority of the burglaries have occurred during the weekend and late night hours.

Police encourage residents to be vigilant and report any suspicious activity.

Residents with information on these crimes can call (714) 741-5704.