Former New York City Police Commissioner Bill Bratton warned of a potentially fatal summer as murder rates rise again across the country.

“We’re facing a very long, dangerous summer, that’s the reality,” Bratton told CNBC on Monday.

“Unlike the last crime epidemic, which took decades to build up by the early 1990s, this one literally came overnight, like the virus, it’s literally out of nowhere and so solutions are not immediately apparent,” he said.

According to a New York Times report citing criminologists, murder rates in major cities rose by an average of more than 30% last year and a further 24% in early 2021.

Bratton told The News with Shepard Smith that the crime landscape could get even grimmer, pending a Supreme Court decision on a major gun control case that could make it easier to obtain and carry a firearm.

“The bad news is that in October, when the Supreme Court across the country passes its ruling on gun licenses, anyone in America can take an unlicensed gun anywhere,” Bratton said. “So we’re talking about a second virus attack, the future doesn’t look very promising at the moment.”

According to the Gun Violence Archive, there were already 274 mass shootings in the United States in 2021, around 40% more than last year. The nonprofit defines a mass shooting as one in which four or more people are injured or killed without the shooter.