Italian nurse arrested on suspicion of killing 13 patients

Italian police have arrested a nurse on suspicion of killing 13 patients, mostly in their 80s, who underwent surgery in a state-run hospital in Tuscany.

Most of the patients suffered severe haemorrhaging during the procedures and investigators later determined that each had a level of anticoagulant in their bloodstreams up to 10 times the recommended dose, investigators told a news conference.