Royal Mail has advised that not all mail was processed to schedule yesterday at its Preston and Sheffield Mail Processing Centres. Customers should expect delays in the following areas:

• Preston: Some mail posted yesterday in the BB, FY, LA and PR postcode areas, due for delivery today in other parts of the UK.
• Sheffield : Some mail posted yesterday in the CV, LE, MK and NN postcode areas, due for delivery today in other parts of the UK.