Turkey's President Abdullah Gul on Wednesday signed into law a contested bill tightening the government's grip on the judiciary as it grapples to contain the fallout from a major corruption probe.

The new law, which sparked fistfights among lawmakers debating it in parliament, will give the justice ministry greater control over the Supreme Board of Judges and Prosecutors (HSYK), an independent body responsible for appointing members of the judiciary.

Gul said he had studied the judiciary bill during its passage through parliament and warned the justice minister about 15 points which he regarded as anti-constitutional. He said these elements had been addressed in revisions to the draft.

"After the correction of these clear violations, I found it more appropriate for the law to be published and for the Constitutional Court to assess the other articles of the law which are subject to pro and con arguments," he said in a statement issued by his office.

The judiciary bill will give the government more say in the naming of judges and prosecutors. The main opposition Republican People's Party (CHP) is expected to file a challenge to the law at the Constitutional Court, seeking its annulment.

The legislation has been strongly condemned by the opposition and by rights groups, raising questions abroad about the state of democracy in Turkey.

Gul last week shrugged off calls to reject the bill, saying it was not his place to challenge legislation.

He also indicated he would put his signature to another contentious bill aimed at strengthening state control over the Internet.

The legislative maneuvers come as Prime Minister Recep Tayyip Erdogan, seen as increasingly authoritarian by critics, is under intense pressure over a bribery and corruption investigation that has implicated some of his top political and business allies. Erdogan has accused his arch-rival Fethullah Gulen, a US-based Muslim cleric with strong ties to Turkey's police and judiciary, of being behind the probe, which began with high-profile police raids in December.

In retaliation, Erdogan's Justice and Development Party (AKP) government has sacked hundreds of police and prosecutors.

Details of the graft probe have been leaked online, including audio recordings in which Erdogan can allegedly be heard telling his son to hide millions of euros in cash on the same day on which the corruption scandal erupted.

The prime minister on Tuesday angrily condemned the recordings as fabricated and a "vile attack" by his rivals.

AFP - Reuters