Kansas City voters on Tuesday were approving a proposal to boost the mandatory retirement age for municipal judges from 65 to 70.

The measure was passing 52 percent to 48 percent with all Kansas City precincts reporting north of the Missouri River and 68 percent of Kansas City precincts reporting south of the river.

It was the only Kansas City question on the Missouri ballot.

Kansas City has required municipal judges to retire at age 65 since 1967, when the current plan was put in place.

When the city charter was changed in 2006, voters were also offered the opportunity to increase the retirement age to 70, but that proposal failed by 311 votes.

Since that time, however, the Missouri Supreme Court has clarified a state law that is relevant to the judges.

The city attorney had warned that Kansas City's lower age limit conflicted with state law and could subject the city to a lawsuit.