These common features aside, he said, the gangs operate very differently.

He said the proposals would give councils the power to "close down" houses from which gangs were operating.

But an official said that some 160 gangs have international connections, large sums of money and operate in more than 30 countries.

Armed criminal gangs often operate with impunity throughout the urban areas.

During the early 19th century, a smugglers' gang operated from the town.

At the time we didn't know the gang was also operating here.

The gang operates almost exclusively during the school week.

I agree that criminal gangs are operating all over the world.

You said the gang operates all over the world, Ralston?

At the same time, "somewhere abroad", a gang of criminals operates.