美联社新闻一分钟 AP 塔尔萨医疗大楼发生枪击事件（在线收听）

This is AP News Minute.

这里是美联社一分钟新闻。

Tulsa, Oklahoma police said Wednesday they were still trying to identify the gunman after a shooting in a medical building.

俄克拉荷马州塔尔萨警方周三称，一座医疗大楼发生枪击事件，他们仍在努力确认枪手的身份。

Four people were killed along with the gunman, who, police say, apparently took his own life.

四名受害者及枪手死亡，警方表示，枪手明显死于自杀。

The House Judiciary Committee holds hearings on Thursday on a bill that would raise the minimum age for purchasing a semi-automatic centerfire rifle from 18 to 21.

众议院司法委员会周四就一项法案举行听证会，该法案将把购买半自动中火步枪的最低年龄从18岁提高到21岁。

The measure would also make it a federal offense to manufacture or possess large-capacity magazines.

这项措施还将把制造或拥有大容量弹夹定为联邦犯罪。

The US and Germany pledged to send Ukraine advanced weapons including up-to-date anti-aircraft missiles and mid-range rockets.

美国和德国承诺向乌克兰提供先进武器，包括最新的防空导弹和中程火箭。

Russian forces are said to be advancing as they try to capture a key city in eastern Ukraine.

据称，俄罗斯军队正在推进，试图夺取乌克兰东部的一座重要城市。

Four days of festivities begin in Britain on Thursday, as Queen Elizabeth II marks 70 years on the throne.

英国将于周四开始为期四天的庆祝活动，以纪念女王伊丽莎白二世在位70周年。

The events include a parade of more than 1,400 soldiers.

这些活动包括1400多名士兵参加的阅兵式。