Police are looking for the shooter.
A gunman opened fire in a Kansas City bar on Sunday night, killing four and wounding five people, local officials and media reported.
The suspect used a gun, and authorities believe it is an isolated incident, Kansas City police Department spokesman Thomas Tomasik told NBC News.
So far, there is little information about the incident. It was not possible to get additional comments from representatives of the Police Department.
The Department said on Twitter around 3 a.m. local time that nine people were shot and four of them died.