Advocates for homeless people filed a complaint with New York City’s Civil Rights Commission on Thursday accusing the Police Department of targeting people living on the street, a practice they say violates a two-year-old law that prohibits “bias-based profiling.”

In June 2015, police officers began issuing “move along” orders in the area around 125th Street in East Harlem, which had become a sprawling community of mostly homeless men, according the complaint.

The efforts grew more aggressive as up to 100 homeless people gathered in the area, turning a spotlight on the city’s homelessness crisis. Police Commissioner William J. Bratton assigned a 38-officer unit to focus on the area, and the city later started Home-Stat, a program involving several different agencies working to move people off the streets and into shelters.

But advocates for homeless people say the city’s efforts are discriminatory because people are being targeted simply for living on the street, even though they have not broken any laws. “We have the right to not have the police interrupt our daily lives,” Alexis Karteron, a lawyer for the New York Civil Liberties Union, said. “It really just boils down to pure harassment.”