Worcester police made several arrests and confiscated more than one kilo of heroin during a major drug operation Thursday.

The Worcester Police Department's Vice Squad, Tactical Diversion Squad and High-Intensity Drug Trafficking Area Task Force all collaborated on a large-scale investigation into a heroin distribution network operating out of 388 Franklin Street.

The team was conducting surveillance on 388 Franklin St. Thursday evening when they witnessed a male exit the property, enter a gray Nissa Versa and drive away.

Police had been monitoring this particular Nissan as part of their investigation into the alleged heroin distribution network.

Authorities stopped the vehicle on Mendon Street.

During the stop, police recovered more than 100 grams of heroin and $1,487 in cash. They arrested an occupant of the vehicle, Jose Peralta-Sanchez, 28, of New Jersey.

Another group of officers remained at the Franklin Street property and witnessed two individuals carrying suitcases exit the building and approach a livery cab.

The officers stopped the two individuals before they could enter the taxi and searched their cases. Inside, they discoverd more than one kilo of heroin and $30,000 cash, authorities said.

Police arrested Antia Paula, 23, and Carlos Mena-Murillo, 33, both of New York.

While searching 388 Franklin St., authorities said they discovered drug packaging materials, cutting agents and other evidence of heroin distribution.

In total, approximately 1.3 kilos of heroin was recovered.

All three suspects are being charged with trafficking heroin over 200 grams. They will be arraigned in Worcester District Court Friday.