Northumbria Police say that a message circulating on social media about a potential security risk to the Metrocentre "appears to be nothing more than an online rumour".
A statement posted on the force's Facebook page on Sunday morning read: "In relation to the message doing the rounds on social media about the Metro Centre.
"We are aware of the post and have had no reports of anything like this, it appears to be nothing more than an online rumour.
"After any major incident there is always an increase in concern around safety and with that comes a lot of speculation and rumour.
"It's only right that people remain vigilant and report any suspicious behaviour to us or the confidential Anti-Terrorist Hotline 0800 789 321."