People are being called to give blood at a donation session next week to keep stock levels healthy.
NHS Blood and Transplant (NHSBT) will be collecting blood at Morrisons supermarket, in Uxbridge Road, Hatch End, on Friday, May 2.
The mobile donor unit will be in the car park of the store and open for people to give blood from 9am to 12.20pm and again from 2pm to 4.20pm.
Anyone aged 17 to 65, weighing more than 50 kg, seven stone 12lbs, and in general good health, can give blood.
For more information or to book an appointment call 0300 1232323 or visit www.blood.co.uk