FAIRFIELD — A fight Sunday night outside a Miller Street restaurant ended in the arrest of Roberto Marrero, 30, of Derby.

Marrero, of Smith Street, was charged with assault on a police officer, interfering with a police officer, second-degree breach of peace, and second-degree threatening.

An officer driving through the train station lot heard a commotion and saw Marrero in the street with the owner of 55 Degrees. The two were pushing each other, after Marrero had apparently been asked to leave the restaurant and then tried to go back inside. Marrero continued to yell at the owner, shouting obscenities and ignoring officers’ commands. He kept moving around and pushed an officer away, until he was finally put in handcuffs. While being taken to headquarters, Marrero allegedly said he would kill the police officer and the officer’s family. He continued making threats during the booking process and spit on an officer, police said.

Marrero was held on a $25,000 bond and is scheduled to appear in state Superior Court in Bridgeport March 19.