LOS ANGELES (AP) — The police have arrested two young men in the shooting deaths of two University of Southern California graduate students from China, an attack that shocked a campus that has more international students than any other American university.

The two men, Javier Bolden, 19, and Bryan Barnes, 20, were arrested on Friday on suspicion of killing the students during what appeared to be a robbery attempt, said Chief Charlie Beck of the Los Angeles Police Department.

The two graduate students, Ming Qu and Ying Wu, were shot on April 11 while sitting in a BMW about a mile from campus. Both were 23 years old.

Their parents filed a lawsuit accusing the university of making false claims about safety at the campus, where nearly one-fifth of the 38,000 students are from overseas.