SAN JUAN, Puerto Rico — Authorities in the Dominican Republic said Tuesday that they seized 36,000 cartridges, 23 firearms and more than two dozen rifle and pistol chargers from a Miami shipment destined for Haiti.

Agents also confiscated a submachine gun and a charger for a .50-caliber rifle, according to a statement from the Dominican customs office.

Dominican officials said the investigation is ongoing and that they are working with agencies, including the United States Department of Homeland Security. They noted that Dominican agents recently seized 37 weapons at the same port in the Santo Domingo capital.

The seizures come as gang violence in neighboring Haiti surges across the capital, Port-au-Prince, forcing 25,000 people to flee in the past two weeks, according to the International Organization for Migration.

Last year, more than 5,600 people were reported killed across Haiti, with gang violence leaving more than one million people homeless in recent years, according to the United Nations.

— The Associated Press