Officers said the men were arguing and pushed each other before Baldwin turned violent.
After the bicycle-related arrest, Baldwin told NY magazine he was ready to quit his public life and leave the city, an hour train ride from where he grew up on Long Island.
TMZ claims to have a little backstory on the dispute, reporting that Baldwin had a friend holding the street spot for him.
Alec Baldwin is in custody right now after he got real aggressive with a man who stole his parking spot.
Freed Asia Bibi plans to leave Pakistan soon
The leader of the Tehreek-e-Labaik (TLP) party also called for the ouster of Prime Minister Imran Khan's government over the case. Another Islamist group, the Millie Yakjehti Council, is also meeting on Thursday to discuss Bibi's case and may launch protests .
According to The Los Angeles Times, in 1995, Baldwin was placed under citizen's arrest for allegedly punching Alan Zanger, a photographer, in Los Angeles, California. Baldwin shares the apartment with his wife, Hilaria, and their four children.
Trump was asked about the arrest this afternoon before he departed the White House for a pair of rallies, first in West Virginia and then later in Indiana. In 2014, he was arrested for disorderly conduct after allegedly riding his bike the wrong way up Fifth Avenue.
Ah - there's the Alec Baldwin we remember.
This is a breaking story.