The US government only acknowledges its role in targeted killings in general terms, refusing to take responsibility for individual strikes or provide casualty figures, including civilian deaths, Human Rights Watch said in their report on drone attacks in Yemen
The Yemeni authorities have been almost as silent, the rights organisation said. Both governments have declined to comment on the six strikes that Human Rights Watch investigated.
More top news
An Egyptian billionaire has offered to buy an island from Greece or Italy and develop it to host migrants fleeing war-torn areas.
The number of children having private tutoring has increased by more than a third in the last decade, according to a charity.
Girls should swap dolls for toys such as Lego and Meccano to get them more interested in science and engineering, top scientist claims.