Park Slope residents say rats have been prevalent in their neighborhood, especially on Butler Street, ever since construction of a new school began a few years ago.

P.S. 133 is slated to open next fall. Residents say the rats are not visible during the day because they come out at night.

The State Department of Health (DOH) says the community needs to work together to get rid of the rats. The agency advises residents to keep all trash in covered metal containers or rodent repellent bags. The DOH also suggests keeping an eye on plumbing leaks, which would be a water source for the rats.