A group of first responders say their brain illness is linked to toxic air and dust from 9/11.

A lawyer for several of those affected says the group is seeking immediate action by the city along with monetary damages. Dozens of people, including six NYPD officers, developed brain cancer after September 11th. Many are blaming the illness on their rescue and recovery work at the Trade Center site.

Their attorney claims that out of the 7,300 sick workers and family members involved in the case, 41 have now died.

The city's lawyers say they will not comment on the case, because they have not yet seen the lawsuit.