Federal agents interrupted a party at a "makeshift nightclub" in north Denver early Sunday morning and arrested almost 50 people of undetermined immigration status, a large number of whom are reportedly affiliated with the Venezuelan Tren de Aragua gang.

The exact number of people arrested was unavailable Sunday morning, but DEA officials said “dozens” connected to the TdA gang were detained.

According to the Drug Enforcement Administration’s Rocky Mountain Division, the operation happened at a makeshift nightclub in Adams County. Drugs, weapons, and cash were all seized from the raid and all suspects were taken away on a bus. In a series of social media posts, the DEA said Homeland Security and ATF agents were also a part of the raid.