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SWANSEA, Il. _Neighborhoods in Swansea hit hard by car break-ins. This morning police are warning residents to be alert especially during this holiday season.

In fact, Swansea Police have issued what`s called a Code Red Alert to residents warning them to keep their car doors locked and report any suspicious activity.

Swansea police say at least nine cars were rummaged through on Wednesday night in two neighborhoods within a half mile of each other.

A Facebook post from Swansea Police says the incidents happened in the northwestern part of the village around the Wolf Branch subdivision. The posting says all of the vehicles were unlocked, no forced entry was reported and nothing of significant value was taken.

Police call the incidents “crimes of opportunity,” saying that whoever is responsible likely just walked around checking car doors to see which vehicles were unlocked.

Assorted change, packs of soda and retirement paperwork containing social security information were among the items taken.

So far there are no suspects.

Police may review surveillance video from cameras mounted outside of one home in the impacted areas to see if the video may offer any clues in the case.