TRENTON — Authorities say two well-known activists on behalf of undocumented students were killed in a two-car collision over the weekend in Maine.

Maine State Police Sgt. Tim Varney says two passengers in a car were killed when a pickup truck veered across the center line early Saturday. He says the victims were 26-year-old Cinthya Nathalie Felix Perez of Los Angeles and 27-year-old Tam Ngoc Tran of Garden Grove, Calif.

Kyle De Beausset, an activist in Boston, says Felix was the first undocumented student to attend Columbia’s Mailman School of Public Health. Tran was a doctoral student at Brown University.

Both were promoters of the so-called DREAM Act, a bill in Congress that would grant citizenship to undocumented students who demonstrate good moral character.