(NYDAILYNEWS) — Serial shutterbug smacker Alec Baldwin unleashed his fury on a Daily News photographer — and now he’s the focus of a criminal investigation.

A lensman for The News filed an assault complaint with the NYPD, charging the hot-headed “30 Rock” star punched him in the face Tuesday outside the city Marriage License Bureau.

The groom-to-be went ballistic when photographer Marcus Santos snapped him outside the Worth St. office after Baldwin and fiancee Hilaria Thomas picked up their license in lower Manhattan about 9:30 a.m.

“He comes after me, starts shoving and punching me — one time, right in the chin,” said Santos, 42, adding that he was coming to the defense of another photographer. “And then he started shoving me, and pushing me. He lunged at me like raging bull.”

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