http://www.msnbc.msn.com/id/41170643/ns/us_news-crime_and_courts/# updated 15 minutes ago BREAKING NEWS More than 100 suspected members and associates of six Mafia families have been arrested in what the FBI described as the biggest organized crime round-up in New York history. Significant leaders of the Gambino, Genovese, Lucchese, Lange, Bonanno and Colombo families and also the DeCavalcante of New Jersey were among those being arrested, NBC New York reported. "Early this morning FBI agents along with our law enforcement partners began arresting over 100 organized crime members for various criminal charges," said Diego Rodriguez, the FBI's special agent in charge in New York. The charges ranged from murder to extortion, narcotics trafficking and illegal gambling, officials said. Hundreds of FBI officials, NYPD officers, state police and U.S. marshals were involved in the operation. The FBI said most of the arrests were made throughout New York City, in New Jersey and New England. Attorney General Eric Holder and other officials were expected to discuss the cases later Thursday at a news conference in Brooklyn. advertisement advertisement > More than 100 alleged mobsters arrested East Coast sweep Charges include murder, extortion, narcotics trafficking, illegal gambling 'Senior mob figures' Citing sources who had been briefed on the arrests, the New York Times reported that those taken into custody "ranged from small-time book makers and crime-family functionaries to a number of senior mob figures and several corrupt union officials." More than two dozen "made" mobsters were arrested, according to the Times. The murder charges were incidents dating back to the 1980s and 1990s, the newspaper reported. Federal probes aided by mob turncoats have decimated the ranks of New York's five Mafia crime families and resulted in lengthy prison terms for several leaders. In 2008, more than 80 suspected members of organized crime gangs were charged. Video: Live like a don in ‘Godfather’ mansion (on this page) Among those targeted in that raid were John "Jackie the Nose" D'Amico and other reputed leaders of the Gambino crime family. Italian authorities conducted simultaneous raids on Mafia groups there. However, these latest raids surpassed that in terms of numbers of people arrested. Organized crime is still active in New York's construction industry, according to the FBI. There is also said to be Mafia involvement in labor union corruption, loan- advertisement advertisement > sharking and gambling.