School districts seeking to harden their buildings and train educators in response to a spate of deadly mass shootings could be getting some financial help from state.

Gov. Charlie Baker has proposed $30 million in new funding to help school districts upgrade security as part of his proposed $43 billion budget.

The largest chunk of the money, $20 million, would help districts and state colleges pay for things such as upgrades to communication and alarm systems, camera surveillance and the addition of single point-of-entry systems in buildings to prevent unauthorized visitors, as well as the creation of anonymous tip lines. That will add to $7.5 million already earmarked for the grant program.