Police hunting a man suspected of going to three houses and shooting dead six people, including his ex-wife and her 14-year-old niece, do not know where he is or how he is getting around, a prosecutor says.

Six people are dead and one has been wounded in shootings in several homes and the suspect remains on the loose, officials in the US say.

An American woman who called herself “Jihad Jane” online pleaded guilty in Pennsylvania to her role in a plot to kill a Swedish cartoonist who had offended Muslims.

An American woman who called herself "Jihad Jane" online has pleaded guilty in Pennsylvania to her role in a plot to kill a Swedish cartoonist who had offended Muslims.