NEW YORK (CBSNewYork) — Federal agents raided a building in Chinatown on Monday night.

Investigators believe the building was being used for prostitution, trademark counterfeiting, gambling and unlicensed medical care, CBS 2 reported.

For hours federal agents carried boxes and led dogs in and out of 35 and 37 East Broadway, 1010 WINS’ Sonia Rincon reported.

1010 WINS’ Sonia Rincon With More On The Story

The commercial building has signs in English and Chinese promoting a lawyer and money transfer business inside, but a man across the street said he knew it didn’t just house offices.

“My window is parallel to those upper floors and I knew what was happening there.  I didn’t know it was illegal though. I just knew they were up all night and there was gambling tables set up,” he told Rincon.

Among the popular games allegedly played in the building was Mahjong.

The building was raided just last year with several people being accused of running a multi-million dollar illegal casino and hundreds of thousands of dollars in illegal proceeds were seized.

Several people were arrested and investigators from various agencies carried out bags of evidence and computers.

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