And nine people were killed in gun violence between members of at least three opposing motorcycle gangs in the city of Waco, Texas.
A coalition led by the United States has increased airstrikes targeting Islamic state militants in the city of Ramadi.
The United Nations Security Council has condemned fighting in two northern states in South Sudan.
Officials say 38 civilians and more than 30 police were injured during a protest in China’s Sichuan province.
Amazon.com has received patent rights to send its products to customers by unmanned drone aircraft.
The U.S. Secretary of State John Kerry says the US has almost ruled out renewed talks with North Korea over its nuclear program.