A review of Turkish reforms due out next week will be critical of the state’s continued use of torture and its harassment of writers, according to a draft made public today.

The progress update next Tuesday will also warn that Turkey’s accession talks face suspension unless it ends its blockade of vessels from Cyprus, an EU member state which Ankara refuses to recognise.

The Finns, who hold the rotating EU presidency, are trying to gather key players from Turkey, Greece, Cyprus, Turkish Northern Cyprus and the European Commission together this weekend to try and break the deadlock.

Recep Tayyip Erdogan, the Turkish Prime Minister, indicated that he would send a representative, but warned that progress was only possible in return for ending the international isolation of Northern Cyprus, which is recognised only by Turkey after its troops seized it in 1974.

Details of the compromise plan remain secret but are understood to focus on lifting the EU trade embargo on Northern Cyprus with a reciprocal opening of Turkey’s ports to Cypriot vessels.

"We will discuss the Finnish plan but this plan is not very reasonable," Mr Erdogan was quoted as saying by Turkish Daily News today.

"There is no change in our stance. The EU must keep its word and break the isolation . If this does not happen, no one should expect us to move forward."

Talks began on Turkey’s accession to the EU a year ago but have suffered a series of blows in recent months, with both the German Chancellor, Angela Merkel, and the French presidential candidate Nicolas Sarkozy suggesting that the country could become a "privileged partner" rather than a member.

Jose Manuel Barroso, the President of the European Commission, acknowledged last month that the speed of Turkey’s accession was slipping and noted that it could take 20 years to fulfil the entry criteria.

The leaked draft of the report on Turkey being prepared by Olli Rehn, the EU enlargement commissioner, stated that, while there had been a reduction in the state use of torture, "cases of torture and ill treatment are still being reported, in particular outside detention centres".

For several months he has been calling for the modification or scrapping of Article 301 of Turkey’s penal code under which dozens of writers and authors have been pursued by the courts, including Orhan Pamuk, the 2006 Nobel literature prize winner.

Mr Rehn’s draft report added: "Prosecutions and convictions for the expression of non-violent opinion...are a serious cause for concern." It also criticises Turkey for failing to tackle corruption, establish the independence of the judiciary or adequately protect the rights of minority groups.

The appetite for meeting EU demands has waned in Turkey in line with the growing "enlargement fatigue" being expressed in Europe and observers believe there is little chance of reviving enthusiasm ahead of elections in March.

A senior Commission official said: "I would not say that Turkey has gone into reverse but they have not moved when there was an expectation of change. They seem to have got stuck.

"Of course there are the elections in March next year but nevertheless you would have expected to see more.

"The question is, can we keep the show on the road over the next few months or do we actually start going into reverse?"

Mr Rehn has warned of a looming "train crash" in Turkey’s accession talks which will come to a head at an EU summit in December.

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