Studious actor James Franco has caused uproar among his classmates at Columbia University - after a group of squealing female fans interrupted a study session to "harass" the star.

The 30-year-old is currently enrolled at the prestigious New York school, where he is taking a master's writing program. Franco was reportedly studying at a university cafe when a crowd of "ridiculous, squealing freshman girl(s) gathered," prompting editors at the institution's Columbia Spectator to issue a warning to their classmates.

One student writes in the newspaper: "(They) were shameless enough to literally go right up to him... warning: Do a bit of subtle ogling, but don't stand around the entrance like a pack of starving vultures."

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(This news article provided by World Entertainment News Network)