VATICAN CITY, May 28 (Reuters) - The Vatican on Monday denied Italian press reports that a cardinal was among those being investigated in a scandal over leaked documents that has shaken the highest levels of the Roman Catholic Church.

Vatican spokesman Federico Lombardi also told a news conference the Holy See would not allow media pressure to rush an investigation which has led to the arrest of Pope Benedict's butler over the leaks.

Lombardi said the pope was following the case closely but calmly and that talk of an internal power struggle behind the case had been exaggerated.

A lawyer for butler Paolo Gabriele, 46, said his client would cooperate with investigators who are trying to track down others suspected of leaking sensitive documents as part of a power struggle inside the Curia, or government of the Church. (Reporting by Philip Pullella, editing By Barry Moody)

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  • Paolo Gabriele, Pope's Butler, With Benedict XVI

    FILE - In this May 17, 2008 file photo, Pope Benedict XVI acknowledges faithful upon his arrival at the Our Lady of Mercy Shrine in Savona, near Genoa, Italy, Saturday, May 17, 2008. The Vatican has confirmed Saturday, May 26, 2012, that the pope's butler Paolo Gabriele, at left holding the umbrella, was arrested in an embarrassing leaks scandal. Spokesman the Rev. Federico Lombardi said Paolo Gabriele was arrested in his home inside Vatican City with secret documents in his possession. (AP Photo/Luca Bruno, file)

  • Paolo Gabriele, Pope's Butler, Arrested

    In this photo taken Wednesday, May, 23, 2012, Pope Benedict XVI butler Paolo Gabiele sits in the car with the pontiff, not seen, as he arrives in St.Peter's square at the Vatican for a general audience. The Vatican has confirmed Saturday, May 26, 2012, Gabriele was arrested in an embarrassing leaks scandal. Spokesman the Rev. Federico Lombardi said Paolo Gabriele was arrested in his home inside Vatican City with secret documents in his possession. Gabriele, a layman, was being held. Vatican documents leaked to the press in recent months have pointed to power struggles and accusations of corruption touching senior Vatican cardinals. (AP Photo/Andrew Medichini)

  • Paolo Gabriele with Pope Benedict

    In this photo taken Wednesday, May, 23, 2012, Pope Benedict XVI delivers his blessing as he arrives at St.Peter's square at the Vatican for a general audience. The Vatican has confirmed Saturday, May 26, 2012, that the pope's butler Paolo Gabriele, bottom left, was arrested in an embarrassing leaks scandal. Spokesman the Rev. Federico Lombardi said Paolo Gabriele was arrested in his home inside Vatican City with secret documents in his possession. Gabriele, a layman, was being held. Vatican documents leaked to the press in recent months have pointed to power struggles and accusations of corruption touching senior Vatican cardinals. (AP Photo/Andrew Medichini)

  • Paolo Gabriele Has Been Arrested

    In this photo taken Wednesday, May, 23, 2012, Pope Benedict XVI delivers his blessing as he arrives at St.Peter's square at the Vatican for a general audience. The Vatican has confirmed Saturday, May 26, 2012, that the pope's butler Paolo Gabriele, bottom, was arrested in an embarrassing leaks scandal. Spokesman the Rev. Federico Lombardi said Paolo Gabriele was arrested in his home inside Vatican City with secret documents in his possession. Gabriele, a layman, was being held. Vatican documents leaked to the press in recent months have pointed to power struggles and accusations of corruption touching senior Vatican cardinals. (AP Photo/Andrew Medichini)

  • Paolo Gabriele, Pope's Butler, Below

    In this photo taken Wednesday, May, 23, 2012, Pope Benedict XVI, flanked by his private secretary Georg Gaenswein, top left, and his butler Paolo Gabiele arrives at St.Peter's square at the Vatican for a general audience. The Vatican has confirmed Saturday, May 26, 2012, Gabriele was arrested in an embarrassing leaks scandal. Spokesman the Rev. Federico Lombardi said Paolo Gabriele was arrested in his home inside Vatican City with secret documents in his possession. Gabriele, a layman, was being held. Vatican documents leaked to the press in recent months have pointed to power struggles and accusations of corruption touching senior Vatican cardinals. (AP Photo/Andrew Medichini)