HARRISBURG — Ten people filed an amended lawsuit Thursday against the state and Pennsylvania state troopers over allegations that officers unlawfully detained them because they are Latino in order to investigate their immigration status. The lawsuit deals with five traffic stops in 2017 and 2018.

They argue state troopers have acted as enforcers of federal civil immigration laws without training, authority or oversight. The plaintiffs “include a family traveling to see loved ones, farmworkers finishing a long day of work, workers traveling interstate to complete jobs, and a car accident victim,” according to the filing by the ACLU of Pennsylvania and other lawyers. “The defendant troopers’ illegal conduct has caused great harm not only to the plaintiffs themselves, but also to their families, friends and employers.”

A state police spokesman, Trooper Brent Miller, said Thursday the agency had not been served with the lawsuit and declined comment.

Three people originally sued the state and one trooper in April, but seven plaintiffs and six state trooper defendants have been added. The lawsuit seeks money damages.

In February, state police announced a new policy to govern troopers’ interaction with foreign nationals, after criticism officers had been acting as an informal arm of immigration enforcement. That policy prevents state troopers from “summarily” questioning passengers in a vehicle stopped for suspicion of violating traffic rules about immigration status.