Two police responding to 911 call shot dead in US state of Ohio
CGTN
["china"]
Two police officers were shot dead in mid-western US state of Ohio on Saturday, local authorities said. 
The suspect has been detained by police. 
The two officers were responding to a 911 call in Westerville. They were immediately fired upon when they arrived at the scene, Westerville Police Chief Joe Morbitzer said at a news conference.