A man who locked himself into toilets in a supermarket and claimed to have a gun and a bomb has been arrested after a five-and-a-half hour stand-off.
Sussex Police were alerted by security guards at Sainsbury's, in Lewes Road, Brighton, at about 14:15 BST.
Officers said the area had been quickly cleared to ensure there was no danger to the public or store staff.
Negotiators talked to the man, from Essex, who was arrested at about 19:40 BST. No weapons were found.
The man has been taken to the Royal Sussex County Hospital to be checked over before being taken into custody.
Ch Insp Helen West said: "While officers were not able to confirm whether he had a firearm or any form of explosive device until the last few minutes, they continued to talk to him and tried to establish what his concerns were."
Earlier, officers said the man's concerns appeared to be personal.
Staff and customers reacted quickly and allowed officers to carry out negotiations in a "calm and quiet atmosphere", she added.
Police said the man had locked himself into the male customer toilets. No-one else was in the toilets at the time and no-one was hurt.
The 46-year-old man was arrested in connection with making threats to commit criminal damage.
Ambulance crews and firefighters were also at the scene.