Sudanese Janjaweed militia along with local Chadian recruits shot or hacked to death more than 100 villagers in eastern Chad last month, an international human rights group said on Thursday. U.S.-based Human Rights Watch, citing eyewitness testimonies and an on-site investigation, said the killings took place in four adjacent villages on April 12 and 13 at a time when Chadian rebels were moving west to attack the capital N'Djamena.Humanitarian organisations have reported subsequent cross-border militia attacks into eastern Chad in May. "Sudanese militiamen are moving further and further into Chad and are looting and killing Chadian villagers," Peter Takirambudde, Africa director of Human Rights Watch, said in a statement sent to Reuters.