Three people have been arrested by police investigating a raid on a Northamptonshire bingo hall.
Four men, described as being smartly dressed, went into Gala Bingo in High Street, Kettering, on 6 May.
Police said staff were tied up and subjected to violence. The thieves escaped with a sum of cash.
A 34-year-old Kettering man was arrested in connection with the incident and later bailed. Two others have been arrested in Leicester.