British police arrested four current and former staff of Rupert Murdoch's best-selling Sun tabloid plus a policeman ... as part of an investigation into suspected payments by journalists to officers. Police also searched the paper's London offices at publisher News International, News Corp.'s British arm, in a corruption probe linked to a continuing investigation into phone hacking at its now closed News of the World weekly tabloid. The arrests included The Sun's crime editor Mike Sullivan, its head of news Chris Pharo, and former deputy editor Fergus Shanahan Also arrested was the paper's former managing editor Graham Dudman, now a columnist and media writer. Thirteen people have now been arrested over allegations that journalists paid police in return for information. Last week, News International settled a string of legal claims after it admitted that people working for the tabloid had hacked in to the private phones of celebrities and others to find stories. The phone hacking scandal drew attention to the level of political influence held by editors and executives at News International, and other newspapers in Britain. It embarrassed British politicians for their close ties with newspaper executives and also the police, who repeatedly failed to investigate allegations of illegal phone hacking.