In Chad, at least 19 people have been killed in a new bout of ethnic violence, bringing the death toll since Thursday to more than 31. <br />''<br />''Public prosecutor Hassan Djamouss Hachimi said fighting erupted yesterday in two villages in Sila province and continued today.<br />''<br />''Twelve people were killed on Thursday in the neighbouring province of Ouaddai when a village was attacked by armed men.<br />''<br />''<span style="color: #222222;">Eastern Chad is grappling with tit-for-tat violence between native Ouaddian farmers and Arab herders.</span><br />