30-year-old Eoghan McMullen of Pinehurst Avenue, Anfield has been charged with robbery in connection with a robbery at the post office on Cleveleys Avenue, Scale Hall back in October.
Two men, one of them wielding a hammer, threatened the postmaster and his wife at the branch, escaping with a substantial amount of money and leaving the couple extremely distressed but unhurt.
The police quickly released CCTV footage of the suspects after the incident.
McMullen has been remanded to appear before Lancaster Magistrates Court on 15th December.
Two woman aged 50 and 23 from Lancaster have also been arrested on suspicion of conspiracy to commit robbery and are on police bail until 23rd February.
• BBC Report 2nd October: Armed robbery at Lancaster sub post office