TOPEKA, Kan. (AP) — Kansas legislators canceled debate Thursday on allowing elementary schools to offer a National Rifle Association-backed firearms safety course, responding to concerns such a step would be inappropriate the week after the mass shooting at a Florida high school.

House Speaker Ron Ryckman Jr., a conservative Kansas City-area Republican, said top GOP leaders are pursuing a more comprehensive plan that could include mental health initiatives.

The proposal drew fire from some Democrats and GOP moderates because it would give preference to an NRA gun-safety program as it authorize...