The traffickers, who largely sell to Rio's middle and upper class, are usually members of ruthless, tightly organized gangs.

The gang, well-organized and ruthless, almost succeeds.

The old days when ruthless gangs ould swoop down upon an unsuspecting village to carry off its best young men and women were largely gone.

The republic is the birthplace of Russia's most ruthless gangs and is considered a hotbed of crime.

"However, we are fighting a brutal, ruthless gang of terrorists, who exploit any possible advantage beyond all human decency or morals."

He won the confidence of some notoriously ruthless criminal gangs and helped win convictions of ring leaders and henchmen.

The Winter Hill gang was considered one of the most ruthless and violent white gangs in America.

Over the years, Chinatown has been the destination for many illegal immigrants from China, often smuggled into the country by ruthless gangs charging exorbitant fees.

They said the gang, extremely mobile, ruthless and well-armed, had crossed over into territory claimed by more traditional and hierarchical Chinese gangs.

It centers around four kids from Beverly Hills who form a ruthless gang.