Portsmouth Football Club have donated £50,000 to the fighting fund to help find missing Madeleine McCann, it was revealed today.

The fund has £73,505 in the bank - but that is just the ''tip of the iceberg'' raised so far, said her family.

Bankers handling donations for Madeleine's Fund revealed the first balance on the account for the not-for-profit company since it was launched on Wednesday afternoon.

But the figure - which includes the £50,000 from Pompey - does not include money collected by banks and building societies and cheques yet to clear.

Madeleine's great uncle, Brian Kennedy, said: ''It's the tip of he iceberg. The figure I have heard likely to be contributed is very considerable.'' The fund will be further boosted when the donated cheques clear at the start of next week.

If it leaves surplus cash, the company could be converted into a charity to help other families in similar situations to the McCanns.

Members of the public can make donations to the fund over the counter in branches of NatWest and the Royal Bank of Scotland.

Postal donations can be made with cheques payable to ''Madeleine's Fund: Leaving No Stone Unturned''. People are asked to send cheques to Madeleine's Fund, c/o The International Family Law Group, 26 Southampton Street, Covent Garden, London WC2E 7RS.

Internet donations can be made into ''Madeleine's Fund: Leaving No Stone Unturned'', Sort Code 60 40 05, Account Number 32130058. All donations will be processed free of charge.