‘We have a problem.’ Homicides are up again this year in more than two dozen major U.S. cities.

The number of homicides increased in the first months of 2016 in more than two dozen major U.S. cities, going up in places that also saw spiking violence last year, according to statistics released Friday.

The increases were small in some areas, and many big cities also had declines. But the numbers were particularly grim for a handful of places — Chicago, Los Angeles, Dallas and Las Vegas — where the number of homicides increased in the first three months of 2016 after killings and other violent crimes also went up in 2015.