An NYPD sergeant and lieutenant received minor injuries Saturday night during three anarchist-related arrests in the East Village.

Police say Eric Marchese, 24, of Brentwood; Alexander Penley, 41, of Manhattan; and Nicholas Thommen, 30, of Salem, Oregon attended the anarchist book fair earlier on Saturday and then began marching near Washington Square Park.

They marched against traffic and chanted anti-police statements, such as "Cops are murderers."

A group of 150 people tipped garbage cans and spray-painted anarchist symbols on commercial premises.

Patrons at the Starbucks at Astor Place and Lafayette Street, where the altercations occurred,, hid under tables.

During the fight, several police officers were assaulted with pipes, bottles and physical force.

Police were also assaulted at a book fair after-party at the Sixth Street Community Center on as they made arrests.