Alec Baldwin was arrested this morning in Manhattan when he allegedly got belligerent with cops after he was stopped for riding his bike the wrong way and not having his identification on him, police said.

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The “30 Rock” star, whose narcissistic character is famously demanding on the show, was riding near 5th Avenue and 16th Street at about 10:15 a.m., police said. He was taken into custody and brought to a local precinct.

Cops will issue the outspoken star, 56, at least one summons, said a law enforcement officer with knowledge of the case.