by: Jeanne Whalen | The Wall Street Journal

LONDON—British police investigating potential cases of journalists bribing public officials for information arrested a former prison officer and a journalist at News Corp.'s Sun tabloid Thursday, bringing to at least ten the number of Sun journalists arrested in the probe.

The arrests deepen News Corp.'s problems in a high-profile scandal involving illicit reporting tactics in the U.K. While the scandal began at the company's now-closed News of the World tabloid, it has since spread to the Sun, the biggest-selling newspaper in News Corp.'s stable.