TORY MP Bob Spink has joined the controversy about political donations with an astonishing attack on his own local party.

As the row over Labour Party donations from property tycoon David Abrahams rages on, Castle Point MP Bob Spink revealed how he fell out with Castle Point Conservative Party Association over an alleged offer of an anonymous donation.

Dr Spink said: "During the last general election, I was offered a donation large enough to cover the election expenses, by a councillor who was acting as an intermediary on behalf of a local businessman with substantial development interests.

"He told me the source of the funds would be kept secret.

"I immediately refused this donation. The normal practice is for associations to meet general election expenses.

"I was concerned and so, immediately following the elections, I asked the chairman of the association, Adrian Roper, to let me have details of the sums donated and who gave them, so I could ensure lawfulness and public transparency.

"Mr Roper refused point blank to give me any details at all. I therefore immediately reported the matter to the Parliamentary Commissioner for Standards."

The MP claimed the row led to an attempt by some senior members to have him deselected.

He said: "I have been criticised and threatened with deselection by members of my own association executive for my frankness, but I hope everyone will now understand how important it is to be transparent, even in Castle Point."

The association decided not to immediately reselect Dr Spink before the last election in 2005, and referred it to a vote by members, which he won with 87 per cent of the vote.

The association has denied all knowledge of the offer of an anonymous donation.

Mr Roper said: "I am not aware of Dr Spink raising concerns about donations received by the association. I am completely unaware of this anonymous donation, which has never been brought to our attention.

"I have no doubt that we have complied with all aspects of legislation. All donations are recorded and, where necessary, are a matter of public record."

Pam Challis, leader of the Tory-controlled Castle Point Council, said: "I am absolutely astounded Bob Spink is making these statements. We are anxious to make sure the party isn't involved in anything scandalous."

Under current Government rules, parties must declare any donations over £1,000. They must also provide the value of the donation and the name, address and other relevant details of the donor.