<p>However, Scotland Yard said nothing had so far been found to substantiate the allegations made against the men, who are all said to be of North African origin.<br /><br />Meanwhile, the pope started the day with a private meeting with Cameron, who had been unable to attend official events on Thursday due to the funeral of his father.<br /><br />In advance of the visit, organisers of the papal trip said the pontiff would tell Cameron that he had prayed for his father, Ian, who died during a holiday in France last week, aged 77.<br /><br />The pope also met with Nick Clegg, the Liberal Democrat leader and deputy prime minister, and Harriet Harman, the acting leader of the opposition Labour Party.<br /><br />The pontiff will celebrate Mass at Catholic Westminster Cathedral in central London, and lead a prayer vigil in Hyde Park later.<br /><br />Protests against the visit are also expected, and Vatican observers have said the pope could also meet victims of child abuse in the Catholic church.</p>
<p>However, Scotland Yard said nothing had so far been found to substantiate the allegations made against the men, who are all said to be of North African origin.<br /><br />Meanwhile, the pope started the day with a private meeting with Cameron, who had been unable to attend official events on Thursday due to the funeral of his father.<br /><br />In advance of the visit, organisers of the papal trip said the pontiff would tell Cameron that he had prayed for his father, Ian, who died during a holiday in France last week, aged 77.<br /><br />The pope also met with Nick Clegg, the Liberal Democrat leader and deputy prime minister, and Harriet Harman, the acting leader of the opposition Labour Party.<br /><br />The pontiff will celebrate Mass at Catholic Westminster Cathedral in central London, and lead a prayer vigil in Hyde Park later.<br /><br />Protests against the visit are also expected, and Vatican observers have said the pope could also meet victims of child abuse in the Catholic church.</p>