LOUISVILLE, Ky. — Hundreds of people who took to the streets of Louisville on Saturday ran to churches and other indoor spaces as curfew fell across the city on the fourth night of nationwide protests after a grand jury did not indict three police officers directly connected to Breonna Taylor’s death.

People in more than a dozen cities and towns across the country on Saturday invoked Taylor’s name during gatherings demanding justice for her case. Larger marches and rallies took place in Portland, Nashville, Chicago, New York City, Washington, D.C., Raleigh, Kansas City, Boston and Baltimore.

Smaller demonstrations also cropped up in Worcester, Massachusetts; Greenville, South Carolina; Poughkeepsie, New York; Akron, Ohio; and Daytona Beach, Florida. In Bristol, Pennsylvania, several dozen people held a candlelight vigil on the banks of the Delaware River.

Louisville saw one of its largest crowds in months. More than 500 protesters marched for nearly an hour around 7 p.m., chanting “This is what democracy looks like” and “Breeway.”

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The group returned to Jefferson Square Park, the heart of the ongoing protests, but dispersed by 9 p.m., running to “safe houses” as sirens blared and city and state police and National Guard vehicles drove by the area. At least four people on the sidewalk were arrested, according to reporters at the scene, but it wasn’t immediately clear what they were charged with.

Several people returned to First Unitarian Church, which protesters have used over the past two nights as a sanctuary from police after the curfew. The group stayed on church grounds for more than two hours — eating food, drinking water and debating next steps — before some began to leave.

Just before midnight, Louisville police said on Twitter that “marchers are starting to break windows, set fires (including a car), and destroy property.” The department said more arrests would be made.