Students and staff at Trinity College Dublin have been warned to remain vigilant after a bomb scare at the college today, a spokeswoman said.
Gardaí at Pearse Street station received a call at 1.55 p.m. claiming a bomb had been planted in the college. Trinity security guards searched the university complex but nothing was found.
The bomb warning is now being treated as a hoax, the spokeswoman added.
However an internal email has been circulated asking staff and students to check their area of work for anything suspicious.
The bomb scare came just over a month after a serious fire damaged the Graduate Memorial building in the university's main square.
Nobody was injured in the fire but some old records, books and other materials belonging to the philosophical and historical societies were damaged - although it was hoped most would be "salvageable".