Amid a raging national debate on guns, a bust in New York City highlights a problem for police in crime-plagued urban areas. While officers can control illegal gun sales in their cities, they have been at a loss to stop the flow of firearms from places with looser laws.

Eight people from three states have been arrested and charged with buying guns legally in Atlanta and Pittsburgh and bringing them to New York, sometimes aboard low-cost Chinatown buses. “I sell guns,” alleged trafficking ringleader Michael Bassier was caught saying on a wiretap, according to prosecutors. “I’ve got two Mac 10s on me, an SK assault rifle and four handguns and I’m walking through New York.” Bassier, 31, of Canarsie, Brooklyn, boasted how he could take advantage of less strict gun laws outside of New York and then sell the weapons at a premium in the city.

As long as criminals can easily get access to guns, we will continue to have carnage.

“I’m selling them the right way and the wrong way,” Bassier allegedly said on one recorded conversation with a woman believed to be his girlfriend. “When I’m out of state, like in Atlanta and Georgia and all that, it’s all legal. In New York, it’s completely illegal.” It has been a source of frustration for law enforcement officials. “We have states that seem to not care about where these guns end up,” said Brooklyn District Attorney Ken Thompson, whose office charged Bassier and seven others in a 541-count indictment. “As long as criminals can easily get access to guns, we will continue to have carnage.” Thompson announced the charges Wednesday while standing behind a table filled with some of the 112 handguns, shotguns and assault-style rifles sold to an undercover New York City police officer for a total of more than $130,000

Olympic and Paralympic athlete Oscar Pistorius, jailed for killing his girlfriend, has been freed from prison to house arrest today, a South African parole board says.

He was sentenced to five years in prison in 2014 after being found guilty of culpable homicide, or manslaughter. He shot Reeva Steenkamp through a locked bathroom door but said he thought she was an intruder.

The prosecution has appealed, saying he should instead be convicted of murder. That case is expected to be heard on 3 November.