SYDNEY, N.S. -- A lockdown over an anonymous online threat has been lifted at a Nova Scotia university.

Cape Breton police say they responded to Cape Breton University around 10:45 a.m. Thursday after campus security officials reported a social media post that indicated a gun threat.

Police say they conducted a complete search of the university and found no evidence of any weapon.

The university's website states that students and faculty returned to normal operations just after 1 p.m. today.

A spokesperson for Cape Breton Regional Police said officers were on campus during the brief lockdown to help campus security officials.

The university said on its website that the threatening post appeared on Yik Yak, an app allowing people to send anonymous messages to other app users within an eight-kilometre radius.

Police continue to investigate the threat and will remain on campus for the rest of the day.