Four people were killed and nine others injured in a shooting that happened in downtown Louisville in the US state of Kentucky Monday morning.

周一上午，美国肯塔基州路易斯维尔市中心发生枪击案，造成4人死亡，9人受伤。

Of the injured, three were in critical condition. One of the two police officers injured was in critical condition, Louisville police confirmed in a news conference.

伤者中有三人伤势严重。路易斯维尔警方在新闻发布会上证实，受伤的两名警察中有一人情况危急。

Louisville police made to the scene in three minutes. Police said the suspect, 23-year-old white man Connor Sturgeon, shot at officers, and the police returned fire and "stopped that threat."

路易斯维尔警方在三分钟内赶到了现场。警方说，嫌疑人是23岁的白人男子康纳·斯特金，他向警察开枪，警察还击，并“阻止了这一威胁”。

The gunman worked at the bank, Louisville Interim Chief Jacquelyn Gwinn-Villaroel said at a news briefing Monday afternoon.

路易斯维尔临时首席执行官杰奎琳·格温-维拉罗埃尔周一下午在新闻发布会上说，枪手曾在银行工作。

There was a heavy police presence at the scene, with damaged glass and discarded medical equipment at one location, local media reported.

据当地媒体报道，现场部署了大量警力，在一处发现了损坏的玻璃和丢弃的医疗设备。

The incident started around 8:30am on Monday （12:30pm GMT） at the Old National Bank on the E. Main Street, the Louisville Metro Police Department tweeted.

路易斯维尔市警察局在推特上表示，这起事件发生在周一早上8:30左右（格林威治时间下午12:30），地点是E大街的旧国家银行。

Gunshots could be heard on video clips at the scene posted on social media.

在社交媒体上发布的现场视频片段中可以听到枪声。