Mexico City, July 24 (IANS): Two men involved in one of Mexico's most shocking kidnapping and killing incidents have each been sentenced to 520 years in prison, media reported on Saturday.

Mario Alberto Rodriguez Ledezma and Gabriel Carrasco Ilizaliturri must additionally pay a fine of more than $270,000 for their role in kidnapping 13 people, including an 18-year-old, at a bar in a central tourist district of Mexico City in May 2013, Xinhua reported.

The men are ineligible for parole and if unable to pay the fine, must serve 39,000 days of community service, La Jornada daily reported.

The crime, carried out by armed men at a bar known as Heaven, shocked the nation as a dozen of youths were killed.

A total of 22 people have been charged in connection with the crime, among which eight have been sentenced, online news magazine Proceso said.

Last September, the owner of the bar, Ernesto Espinosa Lobo and two other people received sentences of more than 500 years in prison, the magazine said.

Two other perpetrators were sentenced to 520 years in December.

The bodies of the missing were later found in a mass grave in a town near Mexico City. They were believed to have been kidnapped and killed in an act of revenge for the death of a drug dealer.