Staff from the Waterfoot Hotel in Derry have been evacuated following a security alert.
The entrance of the hotel has been sealed off.
Police are currently in attendance at security alerts in Belfast, Omagh and Derry.
Strule Arts Centre in Omagh and Belfast Metropolitan College are currently being evacuated.
The three venues were all due to host the PSNI 2015 recruitment information sessions.
Yesterday it was revealed that the PSNI recruitment familiarisation event planned at the hotel for Saturday had been postponed until next week.
The Republican Network for Unity had planned to protest outside the hotel.
Assistant Chief Constable Mark Hamilton said: “A large wedding reception will be taking place at the venue on the same date, and as many people will be aware, a protest against our event has been planned. Those who would seek to disrupt the day have shown no thought for others.
“Out of consideration for the bride and groom, and to ensure they can fully enjoy their special day without the possibility of any disruption, we have arranged to reschedule the event. It will take place at the same venue on Saturday, October 17.”