Pennsylvania police hunted for a suspect in the killing of six relatives whose bodies were found on Monday in towns around Philadelphia, the Montgomery County district attorney's office said.
President Barack Obama used a holiday season visit to a U.S. military base on Monday to issue a tough warning to Islamic State militants, saying a U.S.-led coalition will permit no safe haven to the group and will destroy it eventually.
A former manager at Bernard Madoff's firm was sentenced to six years in prison on Monday for helping her now imprisoned boss carry out his multibillion dollar Ponzi scheme.
Heavily armed Australian police stormed a Sydney cafe early on Tuesday morning and freed a number of hostages being held there at gunpoint, in a dramatic end to a 16-hour siege in which three people including the attacker were killed.
