New Delhi, July 6 -- Four people, including a police officer and the suspected gunman, were killed in a shooting in Ohio on Sunday night after officers responding to a 911 call came under gunfire, authorities said.

The incident unfolded in Rittman, a town of about 6,000 residents outside Akron, prompting a large law enforcement response and the lockdown of part of the community.

Speaking at a news conference, Wayne County Sheriff Thomas Ballinger said officers were dispatched around 9:30 p.m. following reports of shots fired.

According to Ballinger, responding officers "immediately started taking fire" upon arriving at the scene.

"At this time, we lost an officer in the line of duty, and two other ones have been injured," the sheriff ...