SUFFOLK: A fourth person has been arrested following an armed robbery at Hopton Post Office on July 28.

A 30-year-old woman from Ipswich has been arrested on suspicion of conspiracy to commit robbery and attempting to pervert the course of justice.

She has been released on police bail to return to Bury St Edmunds Police Station on January 26.

A 27-year-old man from Essex, a 27-year-old man from Ipswich and a 17-year-old girl from Essex have meanwhile been rebailed and must also return to Bury St Edmunds Police Station on January 26.