Port Washington police arrested one person following a pursuit Wednesday afternoon in Manhasset.
Nassau County police said Northern Boulevard was closed near the Americana Manhasset mall between Searingtown Road and The Gate at Manhasset shopping center.
Port Washington police said they were securing multiple crime scenes.
They did not immediately give more information.
Check back for updates on this developing story.
John Asbury is a breaking news and general assignment reporter. He has been with Newsday since 2014 and previously worked at The Press-Enterprise in Riverside, California.