Missouri senators on Thursday approved a plan to provide over $100 million in aid for tornado-ravaged St. Louis and authorized hundreds of millions of dollars worth of incentives to try to persuade the Kansas City Chiefs and Royals to continue playing in Missouri in new or improved stadiums.

The legislation aimed at the Chiefs and Royals is estimated to cost hundreds of millions of dollars. Missouri would pay up to half the cost of total project costs for building a new stadium or renovating an old one,