More than 50 Post Office branches are set to close as Morrisons shuts dozens of its convenience stores.
The closures affect at least 52 branches housed within Morrisons Daily stores across England, Scotland, and Wales.
Many of the affected sites are in southern England.
The decision follows the supermarket's move to close around 100 Morrisons Daily shops.
A spokesman for Morrisons said: "tough but necessary decision".
The stores were part of Morrisons’ £190 million acquisition of McColl’s in 2022.
Morrisons said the shops had been unprofitable for years and that the situation had been made worse by significant cost increases linked to government policy decisions.
The Post Office is understood to be looking for replacement shops that could host services in affected communities.
According to Better Retailing, the closures could put the Post Office network close to falling below the Government's minimum requirement of 11,500 branches.
The Morrisons Daily Post Office branches set to close are:
Avon Drive Post Office, Morrisons, 18 Avon Drive, Bedford, MK41 7AF
Bewdley Post Office, Morrisons, 7 Load Street, Bewdley, DY12 2AF
Blackwater Post Office, Morrisons, 24 London Road, Blackwater, Camberley, GU17 9AA
Brigg Post Office, Morrisons, 8 Wrawby Street, Brigg, DN20 8ER
Burpham Post Office, Morrisons, 214 London Road, Burpham, Guildford, GU4 7JS
Calne Post Office, Morrisons, 21 Phelps Parade, Calne, SN11 0HA
Chalfont St Peter Post Office, Morrisons, 51-55 St Peters Court, Chalfont St Peter, Gerrards Cross, SL9 9QQ
Church Road Post Office, Morrisons, 96 Church Road, Barnes, London, SW13 0DQ
Clerkhill Post Office, Morrisons, Clerkhill Road, Peterhead, AB42 2XE
Coley Park Post Office, Morrisons, 56 Wensley Road, Coley Park, Reading, RG1 6DJ
Crown Wood Post Office, Morrisons, Crown Wood, Bracknell, RG12 0TH
Darras Hall Post Office, Morrisons, 25 The Broadway, Ponteland, Newcastle Upon Tyne, NE20 9PW
Defoe Parade Post Office, Morrisons, 3 Defoe Parade, Grays, RM16 4QR
Downend Post Office, Morrisons, 4 Downend Road, Downend, Bristol, BS16 5UJ
Edinburgh Road Post Office, Morrisons, 69-71 Edinburgh Road, Jarrow, NE32 4BB
Fairfax Avenue Post Office, Morrisons, 161 Fairfax Avenue, Hull, HU5 4QZ
Fleet Post Office, Morrisons, 229 Fleet Road, Fleet, GU51 3HH
Goldsworth Park Post Office, Morrisons, 5 Denton Way, Woking, GU21 3LG
Great Baddow Post Office, Morrisons, The Vineyards, Great Baddow, Chelmsford, CM2 7QS
Greystoke Avenue Post Office, Morrisons, 12 Arnside Road, Southmead, Bristol, BS10 6AT
Grove Hill Post Office, Morrisons, 3 Grove Hill Centre, Hemel Hempstead, HP2 6BJ
Hallgrove Post Office, Morrisons, 10 Hallgrove, Welwyn Garden City, AL7 4PH
Hassocks Post Office, Morrisons, 44 Keymer Road, Hassocks, BN6 8AR
Heatherside Post Office, Morrisons, 8 Heatherside Arcade, Heatherside, GU15 1AX
Horley Post Office, Morrisons, Unit 4 Consort Way, Horley, RH6 7AF
Hundredstone Post Office, Morrisons, 53 Glenthorne Avenue, Yeovil, BA21 4PN
Ifield Drive Post Office, Morrisons, Ifield Drive, Crawley, RH11 0DQ
Jansel Square Post Office, Morrisons, 35 Jansel Square, Aylesbury, HP21 7ET
Leominster Post Office, Morrisons, 1-3 South Street, Leominster, HR6 8JA
Locks Bottom Post Office, Morrisons, 336-338 Crofton Road, Orpington, BR6 8NW
Longfield Post Office, Morrisons, 69 Station Road, Longfield, DA3 7QA
Luton Post Office, Morrisons, 214 Luton Road, Chatham, ME4 5BS
Manston Drive Post Office, Morrisons, 3 Snowley Parade, Bishops Stortford, CM23 5EP
Marshalswick Post Office, Morrisons, 29 The Quadrant, Marshalswick, St Albans, AL4 9RE
Montague Avenue Post Office, Morrisons, 53 Montague Avenue, Southampton, SO19 0QB
Murch Post Office, Morrisons, The Parade, Dinas Powys, CF64 4NR
New Ash Green Post Office, Morrisons, 19-21 The Row, New Ash Green, Longfield, DA3 8JB
New Milton Post Office, Morrisons, 75-77 Station Road, New Milton, BH25 6JD
North Parade Post Office, Morrisons, 16-18 North Parade, Chessington, KT9 1QF
Radyr Post Office, Morrisons, 10 Station Road, Radyr, Cardiff, CF15 8AA
Riverview Park Post Office, Morrisons, 4-6 The Alma, Gravesend, DA12 4NG
Rochford Post Office, Morrisons, 14 West Street, Rochford, SS4 1AJ
Shortstown Post Office, Morrisons, North Drive, Shortstown, Bedford, MK42 0TL
Stephenson Square Post Office, Morrisons, 10 Stephenson Square, Walsall, WS2 7DY
Surbiton Post Office, Morrisons, 2-3 Victoria Road, Surbiton, KT6 4JU
Taunton Road Post Office, Morrisons, 135 Taunton Road, Bridgwater, TA6 6BD
Thatcham Post Office, Morrisons, 54-55 The Broadway, Thatcham, RG19 3HP
The Neighbourhood Centre Post Office, Morrisons, 9 The Neighbourhood Centre, Poole, BH17 9DW
The Oval Post Office, Morrisons, 17-19 The Oval, Stevenage, SG1 5RA
West Park Post Office, Morrisons, 444 Crownhill Road, West Park, Plymouth, PL5 2QT
Whipton Post Office, Morrisons, 352 Pinhoe Road, Exeter, EX4 8AJ
Woodthorpe Post Office, Morrisons, 51 Moorcroft Road, York, YO24 2RQ
Morrisons has stressed that the move relates to loss-making stores, while it continues to operate and grow its wider Morrisons Daily convenience business through other models.