Media mogul Rupert Murdoch is expected to fly to London to tackle a phone-hacking crisis engulfing his British newspaper empire.

Murdoch is expected to arrive Sunday as the last issue of his News of the World tabloid hits the stands. The 168-year-old newspaper is at the heart of the allegations that its reporters eavesdropped on voicemails sent to the phone of a murdered schoolgirl, victims of terrorism and slain soldiers. Other accusations include paying bribes to police for information on stories.

British police on Friday arrested Andy Coulson, a former spokesman for British Prime Minister David Cameron. He had resigned as News of the World editor in 2007 after one of his reporters and a private investigator were convicted of hacking into the phones of aides to the royal family.

Police on Friday also arrested former royals editor Clive Goodman for suspected corruption.

Mr. Cameron promised Friday that a judge will lead a full public inquiry into the scandal after police conclude the investigation. He also pledged to appoint an independent panel to draft new regulations for British news organizations, whom he accused of failing to properly regulate their own conduct.

The British prime minister said leaders of British political parties had long turned a “blind eye” to bad media practices in order to win the endorsements of newspapers.

Police also raided another tabloid, the Daily Star, earlier Friday in connection with allegations of phone-hacking.