ALBANY — The governors of Massachusetts, Delaware and Puerto Rico have agreed to join a multistate database sharing information about guns and law enforcement efforts.

Massachusetts Gov. Charlie Baker, a Republican, announced Monday with Delaware Gov. John Carney and Gov. Ricardo Rossello of Puerto Rico that they would join the “States for Gun Safety” coalition unveiled last week, roughly a week after a shooting at Marjory Stoneman Douglas High School in Parkland, Florida, left 17 dead and more than a dozen injured on Feb. 14.