A person was stabbed at the Roundhouse, the former Best Western hotel in the heart of the Mass and Cass area used as transitional housing for residents of the needle-strewn zone.

Boston Police responded to the building located at 891 Massachusetts Avenue in Roxbury at around 9 p.m. Tuesday. They located the victim in the building’s basement suffering from multiple stab wounds, according to a police incident report.

The unidentified victim was transported to Boston Medical Center to be treated for life-threatening injuries.

No suspect was indicated on the police report.

The stabbing was the 41st stabbing this year in the area known as Mass and Cass, which is an area immediately surrounding the intersection of Massachusetts Avenue and Melnea Cass Boulevard in Boston, according to BPD statistics through Tuesday.

That places the high-crime area known for open-air drug dealing and use and human trafficking the setting for more than 9% of the total 442 aggravated assault with a knife reports recorded by police throughout the city this year.

The Roundhouse, which is still in use as a temporary housing shelter, was a central resource for the city’s response to the crisis at Mass and Cass.

The city partnered with the BMC, the major hospital adjacent to Mass and Cass, to provide clinical services for those with substance use disorder, but that program ended earlier this summer, according to a BMC spokesman.

The clinical program, at a cost of roughly $5.6 million per year, ended at the end of March due to a “lack of long-term funding,” the Herald previously reported.

The shelter service administered by the city, at a cost of nearly $7.5 million per year, is in its final stages as well and will end in September, according to the BMC statement.

“BMC is coordinating with the city on the next phase of the city’s plan to support the housing transition needs for Roundhouse guests by the end of the contract lease agreement on Sept. 30,” David Kibbe, BMC’s chief spokesman, told the Herald.