Eyewitnesses have this morning (Sunday) reported a “huge police operation” in the Freiston Road/Vauxhall Road area of Boston.
The eyewitness reports, received shortly after 11am, state that the two roads are currently closed as a result.
The reports - which are currently unconfirmed - state that a man is being held by police, and that there are around six patrol vehicles at the scene, in addition to police dogs.
At 11.30am, a Lincolnshire Police spokeswoman said there is currently no information available as “the incident is ongoing”.
• More updates as we have them.