Armed police officers attended an incident in Burgess Hill in the early hours of Sunday morning (August 25) following a report that a car was being smashed up and someone had a gun.
The call came at 2.25am from a woman whose car was parked outside Selsby Court near the junction with Daynes Way.
Officers attended and arrested a 21-year-old woman on suspicion of drink driving and a 26-year-old man on suspicion of threats to kill, criminal damage and actual bodily harm.
Subsequent enquiries led to the arrest of a 20-year-old man on suspicion of possession of an offensive weapon, a 26-year-old woman on suspicion of criminal damage and a 24-year-old man on suspicion of possession of cocaine.
All are from Burgess Hill and after questioning, all were bailed until November 6.
A search of a nearby property located a BB gun, which was seized by police.
Anyone who witnessed the incident or who has information about it is asked to call Sussex Police on 101 quoting serial 202 of 25/08 or e-mail contact.centre@sussex.pnn.police.uk.