KANSAS CITY, Mo. (AP) — Kansas City, Missouri, is planning to expand its curfew plans to city parks and trails after several recent homicides that occurred on or near them sparked concerns.

The Kansas City Star reports that the ordinance was approved Wednesday by the City Council’s Neighborhoods and Public Safety Committee.

The city ordinance keeps the trails open between 5 a.m. and midnight.

The committee also advanced a resolution directing the city manager to collaborate with the parks department on a safety plan over the next six months.

The curfew is a reaction to four killings dating back to August around the trail system. The most recent was on Indian Creek Trail. The Kansas side of the trail closes the route from one-half hour after sunset to one-half hour before sunrise.