Washington, July 23 (TIWN) Three people were killed in a shooting at a park in the US state of Iowa and the suspected gunman is also dead, police said in a statement.

"In total, four people were killed and two were injured," Jim Ison, Chief of Greenwood Police Department said.

During a news conference on Sunday, Ison said that the emergency call center received calls about the shooting in the food court around 6 pm (local time).