SAN FRANCISCO (AP) — University of California President Janet Napolitano says she is capping nonresident enrollment at UC Berkeley and UCLA to address concerns that California students are being displaced.

Napolitano told lawmakers during a budget hearing in Sacramento on Tuesday that the percentage of out-of-state and international undergraduates at the two popular campuses will not increase during the next academic year. Nonresidents made up 20 percent of the undergraduates at UCLA last fall and 23 percent at Berkeley during the last academic year.

The university has been admitting more students from outside California to generate revenue because those students pay much higher tuition. System-wide, their numbers have more than doubled in four years.

Along with UCLA and Berkeley, nonresident enrollment also has increased rapidly at UC San Diego, where students from outside California accounted for one in five undergraduates in the fall.