New York, Jan 21 (Agencies): In one of the biggest Mafia roundup in FBI history, federal authorities detailed charges that led to the arrests of more than 127 mobsters on Thursday. They have been indicted on charges of murder, racketeering, gambling and extortion.

The arrests, which happened in New York, New Jersey and across New England, included members of the Colombo crime family, the Gambino, the Luchese and the Bonanno family.

"Thursday's arrests and charges mark an important step forward in disrupting La Cosa Nostra's illegal activities," said Attorney General Holder, who was addressing a news conference in Brooklyn on Wednesday.

"This largest single day operation against La Cosa Nostra sends the message that our fight against traditional organised crime is strong, and our commitment is unwavering," he added.

At least 127 men had been arrested by Wednesday evening and many were being arraigned in the courthouses in Brooklyn, Manhattan, New Jersey and New England.

The charges carry a variety of maximum penalties, up to life in prison on certain charges.

"Today's indictments represent a major milestone in the Office of Inspector General's statutory responsibility to investigate labor racketeering and organised crime influence and control of unions, employee benefit plans and their workers," said Daniel R Petrole, Acting Inspector General for the US, Department of Labor.

Among those charged are Luigi Manocchio, 83, the former boss of the New England LCN; Andrew Russo, 76, street boss of the Colombo family; Benjamin Castellazzo, 73, acting underboss of the Colombo family; Richard Fusco, 74, consigliere of the Colombo family; Joseph Corozzo, 69, consigliere of the Gambino family; and Bartolomeo Vernace, 61, a member of the Gambino family administration.

"Some believe organised crime is a thing of the past; unfortunately, there are still people who extort, intimidate, and victimise innocent Americans," FBI director Robert S Mueller III said in a statement.