A commander is the 12th Navy official to be charged in a wide-ranging bribery case involving a Malaysian defense contractor nicknamed 'Fat Leonard.'

Commander Mario Herrera from Helotes, Texas, was accused in a complaint unsealed Thursday of accepting prostitutes, luxury trips, and $1,800 in steaks from Leonard Glenn Francis in exchange for classified information.

He was charged with one count of conspiracy to commit bribery in connection with interactions with Leonard Francis, the former CEO of Glenn Defense Marine Asia - a defense firm based in Singapore, according to a Justice Department release.

A commander is the 12th Navy official to be charged in a wide-ranging bribery case involving a Malaysian defense contractor nicknamed 'Fat Leonard.' Pictured is the Navy 7th Fleet - which was involved in the alleged incidents

According to the complaint, Herrera and other U.S. Navy 7th Fleet officers who helped Francis called themselves the 'Band of Brothers' and the 'Wolf Pack.'

'Herrera provided Francis with internal, proprietary U.S. Navy information and intervened on GDMA's behalf in contract disputes,' a DoJ statement read.

'Herrera directed ships to take alternative routes that benefitted GDMA on two separate occasions, costing the U.S. Navy $3.6 million.'

A total of 17 people have been charged so far in the case that has taken down officials for about three years.

The Justice Department's Acting Assistant Attorney General Kenneth A. Blanco (left) was one of the people to announce the charge on Thursday. Herrera was charged with one count of conspiracy to commit bribery in connection with interactions with Leonard Francis (right), the former CEO of Glenn Defense Marine Asia

Francis pleaded guilty to fraud involving his ship supply company. Prosecutors say Glenn Defense Marine Asia bilked the Navy out of $35 million.

The Justice Department's Acting Assistant Attorney General Kenneth A. Blanco was one of the people to announce the charge on Thursday.

Herrera could not be reached for comment.

Some of the other officials charged are: Admiral Robert Gilbeau, Captain Michael Brooks, Commander Bobby Pitts, Captain Daniel Dusek, Commander Michael Misiewicz, Lt. Commander Todd Malaki, Commander Jose Luis Sanchez, former NCIS Special Agent John Beliveau, and US Petty Officer First Class Daniel Layug.