Armed police have been called to a university campus following reports of a student seen brandishing a handgun.
The suspect was said to be threatening other students at the Streatham Campus of the University of Exeter on Wednesday.
Police were called at around 11.30am and said that a man had been arrested.
They were investigating whether the gun was real.
The university said in a statement on Twitter that the police "dealt with the incident swiftly" and that no one was injured.
It added: "The safety of everyone on campus is our overriding priority and the university has strict protocols in place for incidents of this nature.
"We would like to reassure those on campus that the incident is now over."
Devon and Cornwall Police said officers would remain in the area.
On Twitter they wrote: "Armed units were sent to Exeter University following reports of a student making threats to other students, whilst in possession of a handgun.
"Police currently have one man in custody and have seized a weapon; we are now looking to see if this weapon is genuine or a replica.
"We can confirm that we have had no reported injuries and are not currently looking for anyone else in connection to this matter."
They added: "We wish to reassure those on campus that they are safe. Local officers will remain in the area as we continue our enquiries into this incident."