The Blood Bank has called for urgent blood donations to build up its reserves.
It said it could not keep up with demand and was therefore urging donors to come forward today or in the coming days.
The Blood Bank, which is adjacent to St Luke's Hospital in Guardamangia, is open all week from 8 a.m. to 6 pm.
Donations can also be made at Gozo hospital between 8.30 a.m. and 11.30 a.m.
Donors have to produce their ID card.
The bank explained recently that its appeals for blood are becoming more frequent because demand for blood increased as the number of operations performed at Mater Dei went up.