TOPEKA — Kansas voters were giving support to a proposed amendment to the state constitution that would change the way boats are taxed.

Unofficial returns early today indicated the measure was narrowly passing with 90 percent of the vote counted.

Voters were asked to add the words “and watercraft” to the constitution where it addresses levying property taxes. The measure was backed by the Kansas Department of Wildlife, Parks and Tourism in hopes of encouraging more residents to purchase and register boats in the state.