Italian Christmas meal tragedy turns into murder inquiry

Sara Di Vita, 15, and her mother Antonella Di Ielsi, 50, fell ill after a family lunch in their hometown of Pietracatella, a small municipality 260km (161 miles) south-east of Rome.

Doctors initially attributed the symptoms to food poisoning, but the new focus comes after laboratory tests revealed the presence of a deadly poison, ricin, Italian media say - even though police still do not have a suspect.