Armed police swooped on the University of Lincoln Brayford campus and arrested a 25-year-old man.
A convoy of police vehicles pulled up along Brayford Wharf East opposite the university library at around 11.30am on Wednesday, May 23.
Armed police officers were seen running up the bridge with a police dog between the library and the Engine Shed shouting at a man who lifted his hands above his head and dropped to his knees.
Some people shared claims that a man had entered the university library with a weapon – Despite social media reports Lincolnshire Police later confirmed the man arrested was not carrying a weapon.
They added that no other suspects were involved in the incident.
Students were kept in the library building while police officers carried out the arrest.
Lincolnshire Police told The Lincolnite a 25-year-old man had been arrested as part of an operation coordinated by Nottinghamshire Police.
Nottinghamshire Police and the University of Lincoln have all been contacted for a statement.
The university posted on social media: “We had some police presence on campus earlier today just outside the library.
“We did temporarily ask students to stay in the library whilst police handled an incident. We’re grateful for the patience and understanding of staff and students.”